Event calendar file
4-8 November 2024
Mexico/General timezone
Home > Contribution List
Contribution List
Displaying 312
contributions
out of
312
The $\tau^- \to \pi^-\eta\nu_{\tau}$ decay is forbidden in the Standard
Model in the limit of exact $G$-parity, it becomes a rare decay due to
isospin symmetry breaking and it is very sensitive to the effects of
effective scalar interactions. Since the parameters driving isospin
breaking, $(m_d-m_u)/(m_s-\bar{m})$ and $\alpha$, are of the same order,
one may expect their $G$-parity breaking e
... More
Presented by Mr. Diego PORTILLO
Work to participate in the poster session
The neutrino oscillations phenomenon not only represents strong evidence physics beyond the Standard Model but also demonstrates that the neutrino is a massive particle. One possibility for massive neutrinos is to assume that they are particles Majorana type. The most promising process for testing this hypothesis is the neutrinoless double beta decay (0
... More
Presented by Mr. Angel David CAICEDO PEÑARANDA
A model with fermion and scalar fields charged under a Peccei-Queen~(PQ) symmetry is proposed. The PQ charges are chosen in such a way that they can reproduce mass matrices with five texture zeros, {which can generate} the fermion masses, the CKM matrix, and the PMNS matrix of the Standard Model~(SM). To obtain this result, at least 4~Higgs doublets are needed. As we will see in the manuscript thi
... More
Presented by Dr. Juan Carlos SALAZAR MONTENEGRO
The Alpha Magnetic Spectrometer (AMS) is a multipurpose, highly precise particle detector on board the International Space Station since 2011. During these 12 years, AMS has detected more than 240 billion cosmic rays, providing new, unexpected, and impressive results on different particles from electrons to iron nuclei and antiparticles like positrons and antiprotons. In this talk, some of these f
... More
Presented by Dr. Diego Mauricio GÓMEZ CORAL
ATLAS has used the W and Z boson production processes to perform a range of precision measurements providing important tests of perturbative QCD and information about the parton distribution functions for quarks within the proton. This talk will present recent differential Z+heavy flavour jets results, measurements of the Drell-Yan cross section as a function of transverse momentum based on low pi
... More
Presented by . ATLAS COLLABORATION
The discovery of the Higgs boson with the mass of about 125 GeV completed the particle content predicted by the Standard Model. Even though this model is well established and consistent with many measurements, it is not capable to solely explain some observations. Many extensions of the Standard Model addressing such shortcomings introduce additional Higgs bosons, beyond-the-Standard-Model couplin
... More
Presented by . ATLAS COLLABORATION
Parton Distribution Functions (PDFs) are universal, non-perturbative quantities that play a pivotal role in high-energy particle collisions. They are derived from fits to experimental data, and their scale dependence is governed by the DGLAP evolution equations. This presentation introduces machine-assisted strategies that directly incorporate scale evolution, obtaining analytical approximations o
... More
Presented by Mr. Salvador A. OCHOA-OREGON
Session:
Parallel program
Presented by Prof. Eduardo ROJAS PEÑA, Eduardo ROJAS PEÑA
on
4 Nov 2024
at
17:45
We report the most general classification of 3-3-1 models with \beta= \sqrt{3}. We found several solutions where anomaly cancellation occurs among fermions of different families. These solutions are particularly interesting as they generate non-universal heavy neutral vector bosons. Non-universality in the standard model fermion charges under an additional gauge group generates charged lepton flav
... More
Presented by Prof. Eduardo ROJAS PEÑA
In this talk, I will review some of the methods for the efficient computation of scattering amplitudes in quantum field theory (including the double copy) and their application to the description of the dynamics of binaries of black holes.
Presented by Dr. Andrés LUNA
on
4 Nov 2024
at
12:30
1. Introduction
2. Standar Model
3. $U(1)_d Model$
3.1 Lagrangian associated with the model $U(1)_d$
3.2 Z' boson propagator
3.3 Restrictions on the mass and kinetic mixing term of the Z boson
4. Anomalous magnetic moment of the muon
5. Partial Results
5.1 Contribution of the Z′ boson to the anomalous magnetic moment of the muon at 1 loop
6. References
Presented by Mr. Jesús GONZÁLEZ MENESES
Session:
Parallel program
Presented by Omar VAZQUEZ RUEDA, Mr. Omar VÁZQUEZ RUEDA
on
8 Nov 2024
at
11:40
The volume of the quark-gluon plasma (QGP) in ultra-central heavy-ion collisions is mostly fixed, while the total entropy of the system can vary significantly. The entropy density, which is proportional to the charged-particle multiplicity, can also vary within a few percent, leading to an increase in the temperature of the system and resulting in a rise of the average transverse momentum $(\langl
... More
Presented by Omar VAZQUEZ RUEDA
The High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory is a versatile research facility utilizing a highly-enriched U-235 core. HFIR provides a robust and well-documented source of MeV-scale electron antineutrinos, making it an excellent choice for short-baseline neutrino experiments. The PROSPECT experiment, recently conducted at HFIR, not only pursued its primary research objectiv
... More
Presented by Diego MARTÍNEZ MONTIEL
Time Projection Chambers (TPCs) are essential tools in particle physics, offering detailed visualization and analysis of charged particle trajectories. This presentation covers a basic simulation of alpha particles interacting within a prototype TPC, an integral step toward developing a larger neutron beam TPC. The prototype TPC, filled with a CF4-based gas mixture, is used to study alpha particle
... More
Presented by Mr. Jacobo HERNANDEZ C.
Presented by Michel HERNÁNDEZ VILLANUEVA
on
6 Nov 2024
at
13:15
We constrain the neutrino-dark matter cross-section using the $13 \pm 5$ neutrino event excess observed by IceCube in 2014-2015, which spatially coincides with the blazar TXS 0506+056. Our analysis take advantage of the dark matter overdensity spike surrounding the supermassive black hole at the blazar's center. To achieve this, we numerically solve the cascade equation, assuming a cross-section t
... More
Presented by Dr. Gabriel Damián ZAPATA
Presented by Prof. Joao GUIMARAES DA COSTA
on
8 Nov 2024
at
09:00
Session:
Parallel program
Presented by Mr. youssef SARKIS MOBARAK, Mr. Youssef SARKIS MOBARAK
on
8 Nov 2024
at
10:30
CONNIE is an experiment aimed at detecting reactor antineutrinos via the Standard Model CEvNS (coherent elastic neutrino-nucleus scattering) channel using pure silicon CCDs ionization detectors. Since 2021, the detector has been running with two Skipper-CCDs, lowering the detection threshold to 15 eVee, marking CONNIE as the first experiment to employ Skipper-CCDs for reactor neutrino detection. W
... More
Presented by Mr. youssef SARKIS MOBARAK
We apply the effective field theory formalism that was used to study CP violation induced by heavy new physics in the $\tau\to K_S \pi\nu_\tau$ decays to the other two-meson tau decay channels. We focus on the rate and the forward-backward asymmetries, that are predicted using current bounds on the complex Wilson coefficients of the effective Lagrangian. We discuss our outcomes for the modes with
... More
Presented by Daniel A. LÓPEZ AGUILAR
Session:
Parallel program
Presented by Melissa Cruz CRUZ TORRES, Dr. Melissa Maria CRUZ TORRES
on
4 Nov 2024
at
16:15
In this talk, an overview of the latest results on CP-violation measurements in b- mesons and baryons decays is shown. Recent results using the Run 2 data in time-dependent analysis of B0 and Bs processes are important to validate the CP violation paradigm of the Standard Model and to search for new physics beyond it. Results in Charmless B decays, offer great insights in the underlaying dynamics
... More
Presented by Dr. Melissa Maria CRUZ TORRES
A pseudo Nambu-Goldstone boson (PNGB) coupled to a confining gauge group via an anomalous term is characterised, during the confining phase transition, by a temperature dependent mass $m^2(T) \propto T^{−n}$. For $n>2$, a non-relativistic population of such particles dominating the cosmological energy density would act as dark energy (DE), accelerating the expansion. We study the possibility tha
... More
Presented by Prof. Enrico NARDI
Matter with topological order [1] (topological matter for short) has gained considerable attention lately. They are thoroughly studied in condensed matter physics [2], but evermore also from the context of high-energy physics. One of the interesting and peculiar characteristics of topological matter is that as far as their interaction with the electromagnetic field is concerned, they exhibit a uni
... More
Presented by Mauro CAMBIASO
Session:
LAA-HECAP General Assembly (Ádem)
Presented by Dr. Arturo SÁNCHEZ PINEDA
on
8 Nov 2024
at
18:25
The QCD phase diagram is one of the most prominent, outstanding
puzzles within the Standard Model. Various experiments, which
aim at its exploration beyond small baryon density, are in
preparation. From the theoretical side, this is an issue of
non-perturbative QCD, and therefore for lattice simulations.
However, the inclusion of a finite baryon density entails a technical
problem (known as
... More
Presented by Dr. Wolfgang BIETENHOLZ
Coherent CAPTAIN-Mills (CCM) is a 10 ton liquid argon scintillation detector at Los Alamos National Laboratory for the study of neutrino and beyond Standard Model physics. It is located 23 m from the stopped pion source of the Lujan Facility, and will receive $1.5\times10^{22}$ POT in its ongoing 3-year run cycle. CCM is instrumented with 200 8-inch PMTs, of which 80% are coated with wavelength sh
... More
Presented by Mr. Cristian MACIAS
The Dark Energy Survey (DES) was a photometric galaxy survey conducted from 2013 to 2019 at the Blanco telescope in Chile using DECam, a digital camera with 570 megapixels taking pictures of an area corresponding to 1/8 of the full sky with 5 filters. More than 300 million galaxies were observed, together with more than 1500 type Ia supernovae. I will review some of the results obtained so far by
... More
Presented by Prof. Rogerio ROSENFELD
on
5 Nov 2024
at
11:45
Dark matter, a mysterious and elusive component of the universe, remains one of the most pressing challenges in modern physics.This talk will delve into the theoretical landscape of dark matter research, exploring a range of models that have been proposed to explain its nature. We will discuss the leading theoretical candidates for dark matter and will examine the strengths, weaknesses, and curr
... More
Presented by Prof. Carlos YAGUNA
on
7 Nov 2024
at
15:00
We will present the latest results from our experiment DESI (Dark Energy Spectroscopic Instrument). DESI is making the largest and most precise 3-D map of the universe measuring over 40 millions galaxies and quasars within a 5 year period. The footprint left in the distribution of galaxies due to Baryon Acoustic Oscillations (BAO) allow us to determine with great precision the expansion rate of
... More
Presented by Dr. Axel DE LA MACORRA
on
5 Nov 2024
at
12:30
QCD-like theories in which the dark matter (DM) of the Universe is hypothesized to be a thermal relic in the form of a dark pion has been extensively investigated, with most studies neglecting the CP-violating θ-angle associated with the topological vacuum. We point out that a non-vanishing θ could potentially trigger resonant number-changing processes giving rise to the observed relic density i
... More
Presented by Prof. Óscar ZAPATA
We obtain the value of the magnetic dipole moment of the $\rho$ meson, using data from the BaBar Collaboration for the $e^{+} e^{-} \to \pi^+ \pi^- 2 \pi^0$ process. The considered center of mass energy range is from 0.9 to 1.8 GeV. We describe the $\gamma^* \to 4\pi$ vertex using a vector meson dominance model, including the intermediate resonant contributions relevant at these energies. We find
... More
Presented by Dr. Genaro TOLEDO
Based on the work by E. Cremmer and M. Gourdin (1969), radiative correction calculations for the decays of the phi meson into neutral and charged kaons are reproduced, as these are its main decay modes:
\phi \rightarrow K^+ K^-
\phi \rightarrow K^0 \bar{K}^0
An effective Lagrangian is used, coupling massive spin-1 particles with neutral and charged scalar (spin-0) particles.
The radiat
... More
Presented by Mr. Hernan VALTIERRA
Unstable Z bosons, leptons, ATLAS, CMS, Signal Reported, Effects of new theories
Presented by Mr. Diego Alexander WATKO ZERECERO
We consider a two-Higgs doublet model with CP violation in the scalar sector. A notable consequence of such a model is the presence of tree-level flavor-changing couplings mediated by scalars. In this work, we compute not only the standard decay modes but also the flavor-changing ones, with a particular focus on decays involving lepton number violation. For the heavy neutral scalar, with masses ab
... More
Presented by Brenda PÉREZ GALICIA, Oscar Manuel TENIENTE ORNELAS
The Hyper Kamiokande experiment, a large neutrino detector in Japan, aims to study neutrinos and their role in the evolution of the universe, focusing on phenomena like neutrino oscillations and proton decay. Neutrino oscillations, where neutrinos change flavor as they travel, are central to the project’s objectives. This project seeks to apply deep learning techniques to classify these oscillat
... More
Presented by Rogelio GUZMAN CRUZADO, Gilberto RODRÍGUEZ PRADO, Haces-Gil Soto ELRICK EDUARDO, Abendaño-Lara ELÍAS ABISAÍ, Eduardo JUAREZ HERNANDEZ
This project presents the current state of the muon tomograph developed by the Peruvian Space Agency (CONIDA) and the National University of Engineering (UNI), with funding from the National Council of Science, Technology, and Innovation (CONCYTEC). This development is significant because it enables non-invasive studies in fields such as geology, geophysics, and archaeology.
Muon tomography ori
... More
Presented by Mr. Jose Francisco BAUTISTA LEON
We make use of the renormalization group summation in conjunction with the well-known light cone sum rules (LCSR) to obtain the QCD radiative corrections to the electromagnetic and transition pion form factor (emFF and TFF respectively) $F^\pi$ for spacelike in the mid-energy range of transfer momenta $Q^2$.
The strong coupling constant in this approach appears to be free of Landau singularities,
... More
Presented by Dr. Cesar AYALA
In this poster, results from the calculation of the decay rate $$Z \rightarrow \psi \bar{\psi},$$ in the absence and presence of a magnetic field are presented.
To incorporate the effect of the external magnetic field, the self-energy function is calculated to one loop using the fermionic propagators modified by the magnetic field.
Then, the imaginary part of the self-energy function is calcul
... More
Presented by Mr. Manuel Emiliano MONREAL CANCINO
In the study of cosmic rays with ground-based particle detectors, controlling systematic uncertainties, especially those arising from secondary particle transport in the atmosphere, is crucial. There are various applications in the High Altitude Water Cherenkov Observatory (HAWC) that require a detailed description of atmospheric effects on the secondary particle flux, for example, in the study of
... More
Presented by Cindy CASTELLÓN
Presented by Prof. Mayda VELASCO
on
6 Nov 2024
at
10:30
In this presentation, one uses the Gouy-Stodola theorem to calculate the entropy production over time in the inflationary epoch of the universe. This elegant theorem allows us the simple calculation of entropy as well entropy production due to the decaying of the inflaton scalar field in the early universe. Both the entropy and entropy production achieve the expected values present in the literatu
... More
Presented by Prof. Sergio DIAS CAMPOS
Quantum Chromodynamics (QCD) calculations predict the existence of a critical point in the phase transition from hadron gas to quark-gluon plasma. This critical point can be investigated experimentally by studying fluctuations of conserved quantum numbers. In this study, I present the results of simulations of heavy-ion collisions and compare them with experimental data. Additionally, I propose a
... More
Presented by Rodrigo GARCÍA FORMENTÍ MENDIETA
In this work, we use the evolution operator formalism to derive exact formulas for the probabilities
of three-neutrino oscillations in matter with constant density. We introduce a hybrid method that
uses our exact expressions with approximate expressions for the neutrino energy eigenvalues,
leading to transparent and tractable formulas with unsurpassed accuracy compared to perturbative
met
... More
Presented by Prof. José Arnulfo HERRERA LARA
Many theories beyond the Standard Model (SM) have been proposed to address several of the SM shortcomings, such as explaining why the Higgs boson is so light, the origin of neutrino masses, or the observed pattern of masses and mixing angles in the quark and lepton sectors. Many of these beyond-the-SM extensions predict new particles or interactions directly accessible at the LHC. This talk will p
... More
Presented by . ATLAS COLLABORATION
In this talk, I will examine an extension of the Standard Model featuring bicomponent dark matter and a mechanism for left-handed neutrino mass generation. By augmenting the scalar sector with an inert $SU(2)_L$ doublet and triplet, each with distinct dark sectors stabilized by discrete symmetries, we explore their contributions to relic abundance. Additionally, we introduce an active scalar $SU(2
... More
Presented by Mr. Mario LAMPREA
In this work, we analyze Higgs-like resonant signals and recent anomalies observed in high-mass scalar resonance searches at the LHC. We identify a Two-Higgs-Doublet Model (2HDM) as a natural extension of the Standard Model to partially explain these observations, along with the inclusion of a scalar singlet. The Higgs mechanism in our model requires at least two CP-odd bosons and one charged scal
... More
Presented by Prof. Yithsbey GIRALDO
In this work, we explore the potential of lepton-flavor violating (LFV) Higgs decays as a probe for new physics, specifically through the mediation of an ultralight gauge boson, denoted as $\chi$. Our study bridges the gap between a model generating the LFV interaction $\ell_i \bar{\ell}_j \chi$ at tree level and an effective field theory framework that preserves the light mass of $\chi$. We utili
... More
Presented by Dr. Marcela MARÍN
The Coherent Captain Mills (CCM) experiment, located at Los Alamos National Laboratory (LANL) in New Mexico, USA, plays a key role in advancing our understanding of neutrino interactions with liquid argon (LAr), as well as conducting searches for dark matter and physics beyond the Standard Model (BSM). The next generation of large-scale detectors employing LAr demands a detailed understanding of t
... More
Presented by Ms. Marisol CHÁVEZ ESTRADA
In this talk, we present a comprehensive analysis of chiral symmetry restoration using the Linear Sigma model coupled with quarks to illustrate the effective QCD phase diagrams across various planes. Specifically, we explore temperature versus baryon chemical potential, temperature versus magnetic field strength, and the impact of high vorticity on the QCD phase transition. Our study includes deta
... More
Presented by Dr. Luis HERNANDEZ
We apply the recently introduced flattenicity event shape variable in order to identify within the inelastic proton-proton collisions at 13 TeV the presence of events with a very extended structure of low momentum tracks filling in a quasi-isotropic way the pseudorapidity-azimuth phase space, the so-called hedgehog events. We study the distribution of flattenicity values using several state-of-the
... More
Presented by Leonid SERKIN
The High-Altitude Water Cherenkov (HAWC) observatory is a wide field-of-view instrument operational since March 2015. Located in the state of Puebla, México, HAWC observes two-thirds of the sky daily, detecting energies in the range of 0.1 to above 170 TeV, with a duty cycle of over 95%. This unique capability allows us to blind searches of transient sources, studies of extended sources, and the
... More
Presented by Dr. González MARÍA MAGDALENA
The High-Altitude Water Cherenkov (HAWC) observatory is a wide field-of-view instrument operational since March 2015. Located in the state of Puebla, México, HAWC observes two-thirds of the sky daily, detecting energies in the range of 0.1 to above 170 TeV, with a duty cycle of over 95%. This unique capability allows us to blind searches of transient sources, studies of extended sources, and the
... More
Presented by Dr. María Magdalena GONZÁLEZ
on
5 Nov 2024
at
09:45
The process of hadronization, where an energetic colored quark evolves into a color-singlet hadron, can be studied through semi-inclusive deep inelastic scattering (SIDIS). By implanting this process in nuclear medium and comparing modifications in observables between large and small nuclei, we can gain insights into hadronization mechanisms at the femtometer scale. Experimental data from HERMES a
... More
Presented by Dr. Taisiya MINEEVA
The Q & U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of CMB polarimeter, installed on the Puna plateau in Argentina and inaugurated at the end of 2022. QUBIC is optimized for the measurement of the B-mode polarization of the CMB, one of the major challenges of observational cosmology. The signal is expected to be of the order of a few tens of nK, prone to instrumental systemat
... More
Presented by Dr. Jean-Christophe HAMILTON
Presented by Misha GORSHTEYN
on
7 Nov 2024
at
09:00
A systematic study of the neutrino mass matrix $M_\nu$ with two texture zeros and a basis where the charged leptons are diagonal which means three texture zeros in this sector, and under the assumption that neutrinos are Dirac particles is carried through. Our study is done without any approximation, first analytically and then numerically. Current neutrino oscillation data are used in our analy
... More
Presented by Dr. Richard BENAVIDES
The flavor sector presents compelling evidence for physics beyond the Standard Model, which currently leaves several questions unanswered, particularly whether neutrinos are Dirac or Majorana particles, the origin of Yukawa couplings, the explanation of the observed mass hierarchy between fermion flavors and their mixing, among others. In this talk, we explore a supersymmetric framework where Yuka
... More
Presented by Mr. Ramon DIAZ
While the mandate of particle physics research institutes is fundamental research, the developed technologies find applications for the benefit of society. In particular, the development of accelerators, that is the heart of such research centres, has boosted cancer tumour therapy. The last few years the NIMMS Next Ion Medical Machine Study group at CERN is developing novel accelerator components
... More
Presented by YIOTA FOKA
This work explores the impact of an early matter-dominated (EMD) era on dark matter (DM) genesis within the paradigms of weakly interacting massive particles (WIMPs) and feebly interacting massive particles (FIMPs). The study reexamines how an EMD era, which significantly alters the Hubble expansion rate and injects entropy, can modify DM formation. Using the scalar singlet DM model as a case stud
... More
Presented by Mrs. Javier SILVA MALPARTIDA
In this talk we present the first proof-of-concept of the application of the Causal Unitarity formalism, based on the manifestly causal Loop-Tree Duality, to decay processes at NLO. Furthermore, we provide a physical interpretation of the local cancellation of soft, collinear and unitary threshold singularities, and of the local renormalization of ultraviolet singularities.
Presented by Dr. Roger José HERNÁNDEZ-PINTO
The extension of the standard model with right-handed neutrinos is motivated by the observation of neutrino oscillations and masses. These lead to heavy neutrino states possibly in the electroweak scale, which could be impacted by new high-scale weakly coupled physics. These interactions can be studied with a systematic tool like the neutrino-extended standard model effective field theory $\nu$SME
... More
Presented by Dr. Lucia DUARTE PASTORINO
Session:
Parallel program
Presented by Mr. DAVID ALONSO LUZQUIÑOS SAAVEDRA, DAVID ALONSO LUZQUIÑOS SAAVEDRA
on
5 Nov 2024
at
16:50
Discovering new sources of high-energy gamma rays, both of galactic and
extragalactic origin, is crucial for astroparticle physics. Currently, the HAWC and
LHAASO observatories in the Northern Hemisphere use water Cherenkov detectors to
continuously monitor secondary particles from atmospheric showers initiated by
gamma rays. The Southern Hemisphere, however, lacks an equivalent experiment,
l
... More
Presented by DAVID ALONSO LUZQUIÑOS SAAVEDRA, Dr. José Luis BAZO ALBA, Mr. ANDRES COLAN SIFUENTES
Session:
LAA-HECAP General Assembly (Ádem)
Presented by Prof. Rogerio ROSENFELD
on
7 Nov 2024
at
17:45
Exotic neutrino interactions arising from heavy new physics have been widely studied and searched for in different neutrino experiments. These interactions can be studied in a model-independent framework by considering all the couplings allowed by the effective field theory (vector, axial, scalar, pseudoscalar, and tensor couplings).
In this talk, we will highlight the theoretical motivations f
... More
Presented by Dr. Luis J. FLORES
In this talk I will speak about some general aspects of the topic of gravitational waves and their detection. I will also present some of the work we have done in the gravitational wave data analysis group created in Guadalajara and which is now part of the LIGO collaboration.
Presented by Dr. Claudia MORENO
on
5 Nov 2024
at
10:30
In this talk, I will provide an overview of the Vera Rubin Observatory, now nearing the final stages of construction, and its Legacy Survey of Space and Time (LSST), which is expected to begin in late 2025. I will also highlight the significant role of Mexican institutions in this groundbreaking project, through the LSST-MX consortium. The second part of the talk will focus on one of the specific
... More
Presented by Dr. alma GONZALEZ
Dark matter could compose ~80% of all matter in the universe, and yet it is completely invisible to us. Despite decades of experiments designed to detect dark matter, and numerous models for potential dark matter particles, no concrete evidence has been put forward to support the existence of beyond standard-model physics. Because of this, it is worth asking whether approaching the detection of da
... More
Presented by Dr. Andrew MILLER
Session:
Parallel program
Perturbative Quantum Chromodynamics is employed to describe the strong interaction among quarks and gluons, and provide their dynamics. The gluons under extreme conditions are supposed to recombine at low momentum (low x), presenting saturation which would restore unitarity. This phenomenon is not yet fully described analytically, challenging both theory and experiment. The Ultraperipheral, and Pe
... More
Presented by Prof. M.Beatriz GAY DUCATI
on
8 Nov 2024
at
11:00
Although the IceCube Neutrino Observatory detected hundreds of high-energy neutrinos, only a few point-like sources had evidence of being their electromagnetic counterparts. In a steady scenario, the Seyfert type 2 Galaxy NGC 1068 is spatially coincident with a neutrino source, and its statistical significance is 4.2 sigma over nine years of data acquisition. On the other hand, in transient phenom
... More
Presented by Dr. Antonio GALVÁN
The standard-model can be equivalently represented with its fields in a
spin-extended basis, departing from fermion degrees of freedom. The common
Higgs operator connects the electroweak and Yukawa sectors, restricting the
top and bottom quark masses[Phys. Rev. D 99, 073001, 2019]. Using second
quantization, within the heavy-particle sector, electroweak vectors, the Higgs
field, and symmetry
... More
Presented by Dr. Jaime BESPROSVANY
Presented by Dr. Reina CAMACHO TORO
on
6 Nov 2024
at
11:45
This review outlines the selected results of the CMS experiment with data from the LHC machine, in the sector of searches for physics beyond Standard Model. These are based on the CMS data collected during the second and third LHC runs. The presented searches consider signatures of the production of new heavy particles (Z', W', and Heavy Majorana neutrinos, etc.), extra dimensions, quarks/lepton c
... More
Presented by Sergei SHMATOV
The large top quark samples collected with the ATLAS experiment at the LHC have yielded measurements of the production cross section of unprecedented precision and in new kinematic regimes. They have also enabled new measurements of top quark properties that were previously inaccessible, enabled the observation of many rare top quark production processes predicted by the Standard Model and boosted
... More
Presented by . ATLAS COLLABORATION
Hyper-Kamiokande (Hyper-K), the successor to Super-Kamiokande, represents a significant advancement in water Cherenkov detector technology. With a fiducial volume of 188 kilotons and enhanced photodetector systems, Hyper-K is poised to address several key questions in neutrino physics and astrophysics. Located 600 meters underground to reduce cosmic-ray interference, Hyper-K aims to explore variou
... More
Presented by Prof. Saul CUEN-ROCHIN
The ICARUS collaboration operated the 760-ton T600 detector in a successful three-year physics run at the underground LNGS laboratory, conducting a sensitive search for LSND-like anomalous appearance in the CNGS beam. After a significant overhaul at CERN, the T600 detector was installed at Fermilab, where data collection for neutrino oscillation physics began in June 2022 using events from the Boo
... More
Presented by Guadalupe MORENO GRANADOS
Session:
Parallel program
Presented by Guadalupe MORENO GRANADOS, Ms. Guadalupe MORENO GRANADOS
on
8 Nov 2024
at
11:30
In the present work, we study the texture limits of neutrino mass matrices, considering the current values of the oscillation parameters and the observed tension between measurements of the phase $\delta_{\text{CP}}$ in the NOvA and T2K experiments. NOvA has reported $\delta_{\text{CP}} = (0.82^{+0.27}_{-0.87}) \pi$, which minimizes the CP violation, while T2K has measured $\delta_{\text{CP}
... More
Presented by Mr. Ricky Crisomeno TICSE REYES
orking with Resonance Chiral Theory, within the two resonance multiplets saturation scheme, we satisfy leading (and some subleading) chiral and asymptotic QCD constraints and accurately fit simultaneously the $\pi^{0},\eta,\eta^{\prime}$ transition form factors, for single and double virtuality.
In the latter case, we supplement the few available measurements with lattice data to ensure a faithf
... More
Presented by Mr. Emilio José ESTRADA GONZÁLEZ
Coherent Elastic Neutrino-Nucleus Scattering (CE$\nu$NS), was first proposed in 1974 and observed experimentally by the COHERENT collaboration in 2017 with CsI detectors. This interaction occurs when neutrinos scatter off a nucleus as a whole, resulting in low momentum transfer and small nuclear recoil energy. We carried out a study assuming a detector array composed of isotopes of the same elemen
... More
Presented by Laura DUQUE HERRERA
Locking for dark matter through indirect detection in an extension of the Standard Model with two singlet scalars.
Presented by Ms. ALEJANDRA SABED CERVANTES PERDOMO
Power-law distributions are routinely used to describe hadron spectra originated in high-energy collisions (proton on proton, lead on lead and so on). It has been extensively shown that the power-law distributions inspired by the nonadditive statistics proposed by Tsallis describe experimental data substantially well. There have been many efforts to understand the physical scenarios that may give
... More
Presented by Dr. Trambak BHATTACHARYYA
We have developed a novel technique to extract isospin-breaking effects in particle decays that do conserve them. This technique is based in taking experimental data used in Dalitz plots and map it into unit disks, so as to compare two disks from related processes directly. In this case we apply it to $\eta'\to\eta\pi^+\pi^-$ and $\eta'\to\eta\pi^0\pi^0$ decays. We have constructed such Dalitz dis
... More
Presented by Dr. Adolfo GUEVARA
Session:
LAA-HECAP General Assembly (Ádem)
Presented by Prof. Rogerio ROSENFELD
on
8 Nov 2024
at
18:30
In the following months, the Vera Rubin Observatory will start collecting data from the cosmos. The Dark Energy Science Collaboration (DESC) will study the cosmological implications of the new data focusing in the nature of the dark energy. In particular it will use five probes, namely supernovae, galaxy clusters, large-scale structure, and weak and strong gravitational lensing. The Mexican team L
... More
Presented by Dr. Josué DE SANTIAGO
In this talk, we will discuss viability of leptogenesis in SO(10) grand unified theory with minimal Yukawa sector in the sense that no symmetry beyond SO(10) needs to be imposed. The right-handed neutrino mass spectrum is predicted to be hierarchical while leptogenesis obtains dominant contribution from the decays of the second-to-lightest right handed neutrinos. Finally, we also show the consiste
... More
Presented by Chee Sheng FONG
The SM can be seen as an effective theory at low energies and the higher energy physics would then manifest discreetly in processes as NLO corrections. In this work we present a specific flavor structure within the MSSM which allows mixing within second and third families of fermions through supersymmetric one-loop diagrams. We explore the consequences of this structure in flavor violation process
... More
Presented by Dr. Melina GOMEZ BOCK, Dr. Melina GOMEZ-BOCK, Dr. Melina GÓMEZ BOCK, Dr. Melina GÓMEZ BOCK
Several theoretical models that are able to explain physics beyond the Standard Model predicts the existence of particles with large lifetimes, named nowadays long-lived particles (LLPs). These hypothetical states could travel macroscopic distances before decaying inside particle detectors – such as the ones operating today at the Large Hadron Collider (LHC) at CERN – thus yielding more exotic
... More
Presented by Dr. Giovanna COTTIN
Several theoretical models that are able to explain physics beyond the Standard Model predicts the existence of particles with large lifetimes, named nowadays long-lived particles (LLPs). These hypothetical states could travel macroscopic distances before decaying inside particle detectors – such as the ones operating today at the Large Hadron Collider (LHC) at CERN – thus yielding more exotic
... More
on
4 Nov 2024
at
15:00
DAMIC-M is a leading experiment in search for Dark Matter using skipper CCDs at the Modane underground laboratory. It is a continuation of the DAMIC at SNOLAB experiment, and a first prototype phase, the Low Background Chamber (LBC), has been taking data since 2023. I will discuss the excess observed at SNOLAB, the world leading limits obtained at the LBC, and the next years perspective for DAMIC-
... More
Presented by Dr. Xavier BERTOU
The ALICE programme has allowed to study the hottest state of matter created in the laboratory: the strongly-interacting quark–gluon plasma (sQGP). However, some fundamental questions on the sQGP and other aspects of the strong interaction will still remain open after the LHC Runs 3 and 4. To answer such questions, the ALICE detector will undergo a major upgrade resulting in higher readout rate
... More
Presented by Jesus Eduardo MUÑOZ MENDEZ
Magnetic field dependence of the neutral pion screening masses in the linear sigma model with quarks
Session:
Parallel program
Presented by Dr. Javier RENDÓN
on
5 Nov 2024
at
18:35
We use the linear sigma model with quarks to study the magnetic-field-induced modifications on
the longitudinal and transverse screening masses for the neutral pion at one-loop level. The effects of the magnetic field are introduced into the self-energy, which contains the contributions from all the model particles.
We find that, to obtain a reasonable description for the behavior with the field
... More
Presented by Dr. Javier RENDÓN
We will report our recent works Phys.Rev.D 107 (2023) 3, 035025; Phys.Rev.D 108 (2023) 7, 075032 and Phys.Rev.D 110 (2024) 3, 035025 examining the one-loop contributions of Majorana neutrinos (from low-scale seesaws) to triple gauge boson couplings.
Presented by Ms. Mónica SALINAS IBAÑEZ
Session:
Parallel program
Presented by Ms. Monica SALINAS IBAÑEZ, Ms. Mónica SALINAS IBAÑEZ
on
7 Nov 2024
at
17:25
The study of low and high energetic jets gives insight into the soft and hard QCD processes, similar to the multiparton interactions. Recent works have explored these phenomenological effects on the hadron systems. However, none of the studies have calculated the number of multiple parton interactions in terms of the number of jets. The present research provides the relation between the number of
... More
Presented by Dr. Eleazar CUAUTLE
This talk presents precise measurements of the properties of the Higgs boson, including its mass, total width, spin, CP quantum number, precise measurements of Higgs boson production and decay rates. These results are obtained using the full Run 2 and partial Run 3 pp collision dataset collected by the ATLAS experiment at 13 TeV and 13.6 TeV.
Presented by . ATLAS COLLABORATION
Analyzing the flux of ultra-high-energy cosmic rays (UHECRs) is crucial for unraveling their production mechanisms and sources in the universe. Constructed as a hybrid detector, the Pierre Auger Observatory in Argentina is equipped to study UHECR with energies that exceed \sim (10^{17}) eV. It comprises over 1660 water Cherenkov detectors, strategically distributed across 3000 square kilometers, c
... More
Presented by Prof. Rita de Cassia ANJOS
Session:
Parallel program
Presented by Mr. Nicolas PEREZ, Dr. Antonio Enrique CÁRCAMO HERNÁNDEZ
on
5 Nov 2024
at
19:25
We propose two versions of radiative linear seesaw models, where
electrically charged scalars and vector-like leptons generate the Dirac
neutrino mass submatrix at one and two loop levels. In these models, the SM
charged lepton masses are generated from a one loop level radiative seesaw
mechanism mediated by charged exotic vector-like leptons and electrically
neutral scalars running in the lo
... More
Presented by Mr. Nicolas PEREZ JULVE
Scenarios for secluded WIMP dark matter models have been extensively studied in simplified versions. We show a complete UV realization of a secluded WIMP dark matter model with an extra Abelian gauge symmetry with two dark sectors where Dirac fermions are dark matter candidates. That scenario allows a scotogenic realization of an operator for Dirac neutrino masses. We analyze the phenomenology of
... More
Presented by Mr. David SUAREZ
Session:
Parallel program
Presented by Mr. Jose Francisco BAUTISTA LEON, Mr. Mariano Jesus EFFIO CUEVA
We investigate the potential formation of Quark Gluon Plasma (QGP) in proton-proton collisions, focusing on strangeness enhancement as an indicator. Using EPOS event generator, we simulate pp collisions with cascade and hydrodynamic models. We analyze kinematic variables and multi-strange hadron production. Our results indicate a qualitative agreement with CMS and ALICE experimental data. Howeve
... More
Presented by Mr. Mariano Jesus EFFIO CUEVA, Mr. Jose Francisco BAUTISTA LEÓN
In a previous work \cite{Buttazzo:2020ibd}, it has been pointed out that heavy new physics (NP) contributions to lepton dipole moments and high-energy cross-sections of lepton pairs into Higgs and $\gamma/Z$ bosons are connected, if the electroweak symmetry breaking is realized linearly. As a consequence, a multi-TeV muon collider would provide a unique test of NP in the muon $g$-2 through the stu
... More
Presented by Dr. Fabiola FORTUNA
Session:
Parallel program
Presented by Dr. Fabiola FORTUNA, Ms. Fabiola Elena FORTUNA MONTECILLO
on
7 Nov 2024
at
16:45
In this talk, we study the couplings of the gravity supermultiplet (graviton and gravitino) of minimal N =1 SUGRA following a constructive approach. Firstly, we use the master formula that follows from considering the scaling behavior of the spinor variables under the little group. Secondly, we derive the 4-point couplings using BFCW. Then, we verify these results for the general 3-point interact
... More
Presented by Mr. Jonathan REYES PÉREZ
Presented by Prof. Diego RESTREPO
on
7 Nov 2024
at
10:30
A review of the most recent results from the NOvA experiment on neutrino oscillations.
Presented by Dr. Mario A. ACERO ORTEGA
The concept of minimal length, often arising from theories of such and string theory an loop quantum gravity, can potentially affect neutrino oscillations through modifications of the Heisenberg uncertainty principle or the structure of space time at very small scales. In the near future neutrino experiments will improve the measurement of oscillation parameters presenting an opportunity to probe
... More
Presented by Mr. Manuel ÁLVAREZ HERNÁNDEZ
In this work, we study new physics effects in $HZZ$ and $HZ\gamma$ couplings through $CP$-violating anomalous couplings. We find that the $CP$ violation could explain the excess observed in the signal strength of the $H\rightarrow Z\gamma$ decay.
Presented by Mr. Alan Ignacio HERNÁNDEZ JUÁREZ
Presented by Dr. Hiroshi NUNOKAWA
on
6 Nov 2024
at
09:00
At the ATLAS, CMS, and LHCb collaborations, the study of polarizations of gauge bosons is of great interest. This work studies the effects of $CP$ violation and complex anomalous couplings on polarized observables that can be observed at the LHC. In particular, pairs of gauge bosons in the final state are sensitive to these effects. We find that new left-right asymmetries can be defined, which are
... More
Presented by Mr. Alan Ignacio HERNÁNDEZ JUÁREZ
Measurements at the LHC have shown that small collision systems (pp and p--Pb collisions) exhibit QGP-like features. However, the origin of these features remains uncertain. Event activity classifiers, such as the relative transverse activity classifier ($R_{\textrm {T}}$) and flattenicity, allow us to study the soft and hard physics regimes that drive particle production to better understand this
... More
Presented by Ms. Paola VARGAS TORRES
Session:
Parallel program
Presented by Ms. Brenda Aurea CERVANTES VERGARA, Dr. Brenda CERVANTES
on
7 Nov 2024
at
17:25
The $K^{+}\rightarrow\pi^{+}\nu\bar{\nu}$ decay is a golden mode for flavour physics. Its branching ratio is predicted with high precision by the Standard Model to be less than $10^{-10}$, and this decay mode is highly sensitive to indirect effects of new physics up to the highest mass scales.
A new measurement of the $K^{+}\rightarrow\pi^{+}\nu\bar{\nu}$ decay by the NA62 experiment at the CERN
... More
Presented by Prof. Jurgen ENGELFRIED
Astrophysics, Bose-Einstsein condensate stars, compact objects.
Presented by Amanda CASTILLO AYÓN
The study of third-generation fermion channels at the LHC has gained increasing importance, particularly in light of potential excesses observed in the data. This work is a phenomenological study aimed at establishing and distinguishing the effects of different types of BSM particles that can produce an posible excesses in channels with two taus in the final state. These include resonant productio
... More
Presented by Mr. Cristian Fernando RODRIGUEZ CRUZ
Parton Distribution Functions (PDFs) grant us information on the distribution of quarks and gluons inside a hadron, in terms of fraction momentum carried by each parton. These functions are non-perturbative and are crucial in theoretical calculations describing high-energy hadron collisions.
Despite their non-perturbative nature, the PDFs can be studied through experimental data and their Mellin
... More
Presented by Mr. Elser Adolfo LÓPEZ ROSA
Presented by Prof. Eduard DE LA CRUZ BURELO, Dr. Juan BARRANCO, Dr. Abdel PEREZ-LORENZANA, Prof. Alberto SANCHEZ-HERNANDEZ
on
4 Nov 2024
at
09:00
The PIONEER experiment is a next-generation initiative aimed at measuring the branching ratio of charged pion decays to electrons vs. muons with unprecedented precision. This measurement holds significant potential for discovering new physics beyond the Standard Model (SM), particularly at high mass scales, and offers valuable insights into the universality of lepton interactions. Leveraging advan
... More
Presented by Prof. Saul CUEN-ROCHIN
This conversation aims to create a space of reflection within the community on the history of the participation of Latin American institutes in CERN activities, sharing opinions on how to fully realize their potential in current and future projects.
It will feature short introductory talks on:
- current participation from Latin American institutes in CERN activities;
-
... More
Presented by Dr. Leandro SALAZAR, Dr. Edgar CARRERA, Dr. Carlos SANDOVAL, Dr. Melissa Maria CRUZ TORRES, Dr. Salvatore MELE
Percolation.
Tempeture.
Conclusions.
Presented by Mr. Julio Cesar TEXCA GARCIA
In modern astrophysics, the development of new instruments for detecting high-energy particles is highly relevant for the next generation of gamma-ray and cosmic ray observatories. This work presents an innovative design for hexagonal water Cherenkov tanks equipped with two bladders and three layers of photomultiplier tubes (PMTs), aimed at optimizing gamma/hadron separation in the energy range o
... More
Presented by Dr. Andres Sandoval SANDOVAL
In this work, we propose to explain the mass hierarchy and mixing pattern in the leptonic sector, we explore an extension of the Standard Model whose scalar sector includes one active and two inert doublets as well as some scalar singlets. The model includes a $S_3$ family symmetry supplemented by extra cyclic symmetries. As a consequence of our construction, a Dark Matter (DM) candidate is predic
... More
Presented by Daniel SALINAS-ARIZMENDI
Presented by Prof. Diego ARISTIZÁBAL
on
8 Nov 2024
at
14:30
The atmosphere provides a large set of experimental conditions on which cosmic-ray induced high-energy hadron interactions can take place. These conditions include sudden changes in the atmospheric pressure, temperature, and in the local electric and magnetic fields. In this work, we present the Piritakua (flash of lightning in Purépecha) project, a cosmic-ray detector currently under constructio
... More
Presented by Dr. Hermes LEÓN VARGAS
Session:
Parallel program
Presented by Dr. Hermes LEÓN VARGAS, Hermes LEÓN VARGAS
on
7 Nov 2024
at
17:05
If a neutral long-lived particle decays predominantly into photons and another stable particle, its presence can be reconstructed at the LHC in the form of displaced photons. These are recognized as such in terms of their delayed arrival time $t_\gamma$ and a non-pointing parameter $\Delta z_\gamma$.
In this talk we present a detailed recast of a search for displaced photons in ATLAS, and show
... More
Presented by Dr. Joel JONES-PÉREZ
Detectability of the Earth matter effects on the neutrino energy spectrum of a core-collapse galactic supernova requires collecting a large number of events, as well as having a detector with good energy resolution. A JUNO-like detector with an exceptional energy resolution better than 3% at 1 MeV could detect about 5000 inverse beta decay signals from a supernova explosion at a distance of 10 kpc
... More
Presented by Dr. Delgado Insuasty EDWIN ALEXANDER
The luminosity measurement is among the leading sources of experimental uncertainties in SM precision physics at LHC, for example for measurement of fiducial cross-sections of W, Z and Higgs. The LHC experiments target 1% uncertainty on the yearly calibrated offline luminosity. In this talk we report the measurement of the integrated luminosity in proton-proton collisions at a center-of-mass energ
... More
Presented by Prof. José Feliciano BENITEZ RUBIO
Neutrino nonstandard interactions (NSI) alter the behavior of neutrinos beyond the predictions of the Standard Model, leading to significant implications for the expansion history of the Universe, loss of neutrino free streaming, among others. These modifications leave observable imprints on cosmological data sets such as Big Bang Nucleosynthesis (BBN), the Cosmic Microwave Background (CMB), Baryo
... More
Presented by Dr. Jorge Alberto VENZOR VALDIVIA
Session:
Parallel program
Presented by Mr. Jorge Alberto VENZOR VALDIVIA, Dr. Jorge Alberto VENZOR VALDIVIA
on
4 Nov 2024
at
17:35
In this work we study the production of a dark matter (DM) particle in association with a Higgs boson via a central exclusive photon-fusion initiated process. We explore this type of production through the Inert Doublet Model plus a Scalar (IDMS), where an extension of the Standard Model by an additional $U(1)_\chi$
gauge symmetry and a $SU(2)$
scalar doublet gives rise to a DM candidate. This
... More
Presented by Dr. Haydee HERNANDEZ-ARELLANO
Session:
Parallel program
Presented by Ms. Haydee HERNANDEZ, Dr. Haydee HERNANDEZ-ARELLANO, Ms. Haydee HERNÁNDEZ
on
5 Nov 2024
at
15:50
It is well known that the relativistic equations have acausal solutions which, generally, have been ignored. Particularly, this is true for higher spins.
In this talk we calculate corresponding propagators which indicate if a theory is local or non-local. Tachyons and negative-energy solutions are also considered. The ccnclusions are paradoxical in these cases.
Presented by Prof. Valeriy DVOEGLAZOV
95 GeV Higgs,effective couplings,new particle,ATLAS,CMS.
Presented by Mr. Oswaldo Alan VERGARA ESLAVA
When thinking about the origin of mass in the visible universe, the Higgs boson is the first that comes to mind. While undeniably pivotal in the universe, its share to this budget constitutes merely 2%; the vast remanent stems from QCD interactions. This talk delves into how examining pseudoscalar mesons provides a valuable window into comprehending the mass origin within the Standard Model, expl
... More
Presented by Khépani RAYA
The PyForce is a tool designed for the exploration and analysis of the Standard Model of particle physics and extension models. This project aims to provide a solution that will facilitate both interactive learning of the Standard Model and robust analysis of new theoretical models, essential in the search for "New Physics."
PyForce integrates various computational tools, allowing researchers a
... More
Presented by Dr. Tomás Antonio VALENCIA PÉREZ
Session:
Parallel program
Presented by Dr. Saul HERNANDEZ ORTIZ, Mr. Saúl Fernando HERNÁNDEZ ORTIZ
on
8 Nov 2024
at
12:00
The canonical quantization of a massive spinor-like spin $j=1$ field belonging to the $(1,0)\oplus(0,1)$ representation of the HLG, whose dynamics satisfy only the Klein-Gordon equation, is studied. The conventional quantization yields ghosts in the spectrum; however, it is shown that a suitable redefinition of the dual field by introducing an operator that modifies the inner product of states in
... More
Presented by Mr. Armando De La Cruz RANGEL PANTOJA
We explore the dynamics of the massless scalar field in the context of hairy black holes within the Einstein-Maxwell-scalar gravity system. Utilizing both the series solution and shooting methods, we numerically compute the corresponding quasinormal modes (QNMs) across various black hole parameters. Notably, the values obtained from these two methods exhibit robust agreement. The consistently nega
... More
Presented by Dr. Supragyan PRIYADARSHINEE
Session:
Parallel program
Presented by Prof. Arturo FERNANDEZ TELLEZ, Prof. Ricardo LÓPEZ FERNÁNDEZ
on
8 Nov 2024
at
11:45
Session:
Parallel program
Presented by Dr. Leandro SALAZAR, Dr. Edgar CARRERA, Dr. Reina CAMACHO TORO, Mr. Carlos SANDOVAL, Dr. Salvatore MELE, Dr. Edgar CARRERA
on
4 Nov 2024
at
16:45
The weak mixing angle is a central parameter of the Standard Model. Due to the SM radiative corrections its value at the $Z^0$-pole and at low energies is different. While the running has readily been experimentally confirmed on the qualitative level, the future experiments will test the SM prediction quantitatively. Additionally, deviations from the SM running is a sensitive test of physics beyon
... More
Presented by Misha GORSHTEYN
In this work we study an extension of the $SU(5)$ grand unification model in the supersymmetric case, which consists in adding a $S_3$-modular symmetry. This symmetry takes the role of a flavour symmetry between quarks. Futhermore, the Higgs scalar sector is extended to include six doublets in contrast to the minimal Higgs sector of the Standard Model of Elementary Particles. Then we proceed to gr
... More
Presented by Mr. Antonio Carlos SAMANIEGO FLORES
In this talk, we present a novel methodology and preliminary findings in investigating decays occurring at Belle II specifically those involving undetectable products. Such processes encompass standard model decays with neutrinos and beyond standard model scenarios featuring unseen particles in the final state. We are especially focused on the lepton-flavor-violating 𝜏→ℓ𝛼 (ℓ= e, 𝜇
... More
Presented by Mr. Johan Andrés COLORADO CAICEDO
We present the measurement of the $\mathrm{B}^{+}$ meson production cross section
as a function of transverse momentum and, for the first time, in charged particle
multiplicity ranges using the CMS detector during $2016$ data collection that
corresponds to an integrated luminosity of $175~\mathrm{nb^{-1}}$ , in proton-lead
collisions at a per nucleon center of mass energy of $8.16~\mathrm{TeV}
... More
Presented by Mr. Camilo TORRES CASTAÑO
In the context of minimal left-right model based on the gauge group $SU(2)_L \times SU(2)_R \times U(1)_{B-L}$. In this context, right handed neutrinos appears naturally. The scalar sector is composed for one bidoublet and two triplets. Also, neutrinos adquiere mass including left and right Majorana mass terms in addition to the Dirac standard mass term. There are two cases for the left-right symm
... More
Presented by Dr. Moises ZELENY MORA
Presented by Prof. J. Pedro OCHOA-RICOUX
on
6 Nov 2024
at
09:45
The Muon IDentifier detector (MID) is a subsystem proposed for the upgrade of ALICE at CERN. The ALICE 3 project is programmed as the next-generation heavy-ion experiment at the LHC, to be operated during the LHC runs 5 and 6. The baseline option for MID is plastic scintillator bars equipped with wavelength shifting fiber and silicon photomultipliers for readout. In order to verify the hadron
... More
Presented by Antonio PAZ
In this talk I discuss the naturalness problem of particle physics, arguing that the standard model (SM) is free of such problem, but this is so thanks to the values of the top and Higgs mass. The real problem arises in extensions of the SM where all couplings are O(1). However, the naturalness problem is brought under control in models with extra particles that have feeble couplings with the SM.
... More
Presented by Prof. Lorenzo DIAZ-CRUZ
Session:
Parallel program
Presented by Prof. Lorenzo DIAZ-CRUZ, Dr. Lorenzo DIAZ-CRUZ, Dr. Lorenzo DIAZ-CRUZ
on
4 Nov 2024
at
16:15
Upcoming missions targeting the measurement of the absolute intensity of the Cosmic Microwave Background (CMB) are expected to detect spectral distortions—deviations from its blackbody distribution. Cosmic inflation, a rapid expansion of the universe shortly after the Big Bang, can cause these distortions. Therefore, these experiments provide an opportunity to test various inflationary theories,
... More
Presented by Dr. Raul HENRIQUEZ ORTIZ
The split-supersymmetry method was proposed to address the naturalness (or hierarchy) problem in physics beyond the standard model without the need for a light supersymmetric spectrum. This talk will address this mechanism for supersymmetry breaking within a finite grand unification model, particularly in the model, motivated by a scenario of anomaly-mediated SUSY breaking. Additionally, it will a
... More
Presented by Luis Enrique REYES RODRÍGUEZ
We analyze the Higgs sector of the minimal S3-invariant extension of the Standard Model including spontaneous CP violation arising from the electroweak symmetry breaking. This extended Higgs sector includes three SU(2) doublets Higgs fields with complex vev’s providing an interesting scenario to analyze the Higgs masses spectrum, trilinear Higgs self-couplings
and CP violation. We present how t
... More
Presented by Ms. Adriana PÉREZ MARTÍNEZ
We present a detailed analysis of the transverse momentum distribution of charged particles from a nonextensive description. Considering the color string fragmentation described by the Schwinger mechanism convoluted with the string tension fluctuations, we obtained functions that describe the $p_T$ spectrum. This approach led us to introduce heavy-tailed string tension fluctuations that give rise
... More
Presented by Dr. J. Ricardo ALVARADO GARCÍA
Given the success of high-altitude wide-field gamma-ray detectors in the northern hemisphere, such as HAWC and LHAASO, a similar observatory in the TeV-PeV energy range is desirable in the southern hemisphere. The proposed Southern Wide-field Gamma-ray Observatory (SWGO), currently in the R&D phase, will be a ground-based, high duty cycle, extensive air shower water Cherenkov detector array with a
... More
Presented by Prof. Jose BAZO
on
5 Nov 2024
at
09:00
In the framework of the extension of the Standard Model with gauge symmetry $SU(2)_{L} \otimes SU(2)_{R} \otimes U(1)_{Y^{\prime}}$ and additional exotic fermions known as mirror fermions, we investigate the possibility that one neutrino mirror plays the role of a sterile neutrinos with mass on the scale of a few $eV's $, that is, $\hat{m}_1 \approx O(1\: eV)$. A numerical fit of parameters is u
... More
Presented by Dr. Moisés ZELENY
Heavy-ion collisions at high temperatures and energy densities create a quark-gluon plasma (QGP), a deconfined state of quarks and gluons. Enhanced production of strange particles, particularly multi-strange baryons, has been considered a signature of QGP formation. However, ALICE-LHC at CERN have unexpectedly observed similar patterns in proton-proton collisions, suggesting the emergence of colle
... More
Presented by Ms. Irandheny YOVAL
Session:
Parallel program
Presented by Mr. Andrés MUÑOZ ACEVEDO, Andrés MUÑOZ ACEVEDO
on
4 Nov 2024
at
17:55
The production of χc states in pPb collisions at $\sqrt{sNN}$ = 8.16 TeV, collected by CMS detector during 2016 and corresponding to an integrated luminosity of 180 nb$^{−1}$, is studied via the ratios of $\chi_{c2}$ to $\chi_{c1}$ and $\chi_{c}$ to J/$\psi$. The ratios are presented as a function of transverse momentum, rapidity and primary track multiplicity. The corresponding kinematic range
... More
Presented by Mr. Andrés MUÑOZ ACEVEDO
During the investigation grade work titled *Study of geodesics in the spacetime of black holes type Sagittarius A**, it was determined the trajectories of motion known as \textit{geodesics} around a system
composed by two supermassive black holes (SMB) whose physical properties are the same of the black hole Sagittarius A*
located at the center of the Milky Way;
for this investigation, the Ro
... More
Presented by Mr. Fabian Andres PORTILLA ROSERO
In this talk we show an implementation of the super statistics framework to a linear sigma model coupled to quarks, using distinct distribution within the Tsallis prescription for the effective potential. We investigate the impact of the finite volume and thermal fluctuations on the critical endpoint of the QCD phase diagram. The effective thermodynamic potential we obtain is a function of the the
... More
Presented by Mr. Victor MUÑOZ-VITELLY
Neutrinos have been a topic of significant interest due to their small mass, oscillatory behavior, and weak interaction with ordinary matter, making their detection a substantial challenge. This requires the use of large water tanks and photosensitive detectors to capture Cherenkov radiation. Supernovae, which are energetic events occurring at the end of stellar evolution from the core collapse of
... More
Presented by Mr. Sergio de Jesus GALARZA BALLESTEROS
We discuss two variants of supersymmetric theories that allow to bypass or weaken greatly the limits on the minimal supersymmetric model obtained during the LHC RUN 1 and RUN 2 and to explain why we don't observe light superpartners with masses below the TeV threshold. This situation is uncomfortable in some sense because it definitely contradicts the naturalness requirements of the MSSM. Stealt
... More
Presented by Dr. Mariia SAVINA
In this work we are going to study the
$QED_2$ on the null-plane coordinates using the symplectic formulation procedure
for constrained systems. The commutation relations of the theory are calculated with the null plane gauge conditions.
Presented by Dr. German RAMOS
The detection of high-energy astrophysical neutrinos by IceCube has opened a new window on our Universe. While IceCube has measured the flux of these neutrinos at energies up to several PeV, much remains to be discovered regarding their origin and nature. Currently, the discovery of point sources of neutrinos is hindered by atmospheric neutrino backgrounds; likewise, astrophysical neutrino flavor
... More
Presented by Will THOMPSON
The $p_T$ spectrum of the charged particles produced in pp collisions can be described through the fragmentation of color strings by assuming the Schwinger mechanism with heavy-tailed distributions describing the string tension fluctuations. In particular, we discuss the string tension fluctuations described by the q-Gaussian distribution, and the one derived for the QCD-based Hagedorn function.
... More
Presented by Ms. Diana ROSALES HERRERA
It is generally accepted that weather variables influence the detection of Cosmic Ray secondaries at ground level. For instance, muon detectors are susceptible to fluctuations in atmospheric conditions, including pressure and temperature. In this poster, we introduce the Data Acquisition System of the Piritakua Observatory, which will be installed at the Instituto de Física of the Universidad Nac
... More
Presented by Dr. Antonio GALVÁN
Electroweak precision measurements can be used to probe all sectors of Standard Model through quantum correction, as well as put constraints on a wide range of new physics models. This presentation will give an overview of the current state of such electroweak fits and of the theoretical calulations needed to interpret the experimental inputs. Furthermore, proposals for future lepton colliders (FC
... More
Presented by Ayres FREITAS
on
8 Nov 2024
at
16:30
Rindler's metric is an interesting way to incorporate a set of uniformly accelerated observers into space-time coordinates; this is consistent with special and general relativity. It is known [1] that such an acceleration gives rise to the famous Unruh effect, yet to be confirmed experimentally [2]. Interestingly, its Galilean limit already shows the appearance of quantized modes for massive parti
... More
Presented by Mr. Miguel Angel ESTÉVEZ, Prof. Justiniano Lorenzo DÍAZ-CRUZ, Prof. Emerson SADURNÍ
The origin of the values in the CKM and PMNS matrices remains as a challenge in the current physics understandment. In the framework of flavor symmetries with vector-valued modular forms (VVMFs), we investigate a new generalized finite modular group: the binary dihedral group 2D3. A systematic classification of fermion masses models with these group structures is also given, including the best-fit
... More
Presented by Mr. CARLOS MOISES ARRIAGA OSANTE
It is generally assumed that through the Kibble mechanism topological defects persisted since the early universe. In this talk we discuss a model beyond the Standard Model that permits a non-standard type of cosmic strings. In order to study cosmic string solutions, we first promote the global symmetry U$(1)_{B-L}$ (baryon minus lepton number) to a local symmetry and add a new gauge coupling. The
... More
Presented by Mr. Jose Antonio GARCIA HERNANDEZ
RHIC has reported that relativistic heavy ion collisions produce a deconfined QCD matter called Quark-Gluon Plasma. The system created in this type of collision has properties under investigation in RHIC and CERN experiments.
On the theoretical side, the THERMUS model, based on statistical mechanics, is used to extract the properties of those mediums.
Here, we present the extraction of the ther
... More
Presented by Jose Francisco REYES RODTIGUEZ
We explore the parameter space for processes with fermionic flavor violation within the 2HDM type III, processes of Flavor Changing Neutral Currents are present at LO as dynamics beyond the Standard Model are included. We analyze the possible Yukawa couplings beyond the SM nvolving the quark top, as the experimental signatures would be a clear signal to conclude about the model. The processes we
... More
Presented by Dr. Wendy GONZÁLEZ-OLIVARES
We present our study on compactifications of the $\mathrm{SO(32)}$ heterotic string over the so-called non-Abelian orbifolds. It will be shown how to generalize the methods for the Abelian orbifolds to our scenario, and how novel features as the gauge group rank reduction arise in these geometries. We give concrete results in the cases of the orbifolds defined by the groups $S_{3}$, $D_{4}$ and $(
... More
Presented by Mr. Miguel Ángel HERNÁNDEZ-SEGURA
I will present our recent effort of computing two-loop master integrals for the
leading-color scattering amplitudes for $pp\to t\bar{t}H$. The main focus of the talk is on the necessary master integrals for contributions including closed light-fermion loops. In addition, I will give an outlook on the challenges for the remaining master integrals that would allow the computation of the full leadin
... More
Presented by Mr. Manfred KRAUS
In the context of relativistic heavy-ion collisions, an excess has been detected in the yield of photons and in the strength of the elliptic flow, sometimes referred to as the photon puzzle. It has been argued that, due to the presence of strong magnetic fields in these systems, new channels of photon production can be present and contribute to this excess. To this aim, we study the gluon fusion i
... More
Presented by Mr. Santaigo BERNAL LANGARICA
The OS is the largest supporter of basic research in the physical sciences in the U.S. The mission of the Office of High Energy Physics (HEP) is to: discover the elementary constituents of matter and energy; probe the interactions between them, explore the basic nature of space and time. The Office of High Energy Physics (HEP) supports ~85% of particle physics research in the U.S., >160 institutio
... More
Presented by Dr. Manuel BAUTISTA
Ultralight scalar dark matter represents the idea that the dark matter in the universe is made of boson particles with a very tiny mass, such that wave effects are present at galactic and possibly at larger scales, that could be detected by using different astrophysical and cosmological observations. The model has been studied intensely for the last two decades, starting with its behavior at cosmo
... More
Presented by Dr. Luis URENA-LOPEZ
on
7 Nov 2024
at
11:45
Session:
Parallel program
Presented by Mr. Leonardo ESPARZA, Mr. Leonardo ESPARZA
on
5 Nov 2024
at
18:35
In this work, we consider a particular case of hadronic de-excitation via lepton flavor violation (LFV). Namely, ρ′ → ρμe decay, described considering effective dim-5 and dim-7 operators. Using the current bounds for the couplings from direct processes, we exhibit the different features in the dilepton invariant mass distribution and the branching ratios, depending on the effective operator
... More
Presented by Mr. Leonardo ESPARZA
In this letter we are exploring phenomenologically the potential of IceCube to
prove the presence of two sterile states in the context of the (3+2) scenario. As the angular and energy distributions of reconstructed muon events, observed by IceCube, can be
distorted with neutrino mass splitting ∆m²∼1eV² at the scale of few TeV, where the Ice-
Cube detection is highly optimized, here we hav
... More
Presented by Mr. Alexander QUIROG
We explore the possibility of spontaneous CP violation, as well as electric charge breaking in multi-scalar models by adding extra vacuum expectation values in the Georgi-Machacek model. The minimum conditions for these vacua are determined along with their mass matrices, and the possibility of aligning these vacua using the eigenvalues of the mass matrices is examined, considering that they must
... More
Presented by Mr. Jorge LEÓN SILVERIO
We calculate the neutrino-electron elastic scattering cross section, extending the results previously obtained in ref. [1], in the presence of generic new interactions that take into account all the effects caused by finite neutrino masses. We address the potential significance of a heavy neutrino sector during precision measurements, particularly for tau neutrinos scattering with masses in the Me
... More
Presented by Juan Manuel MÁRQUEZ
