Event calendar file
20-24 October 2025
Mexico/General timezone
- xixmwpf_2025@googlegroups.com
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96
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 effect
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Presented by Mr. Diego PORTILLO
Type: Plenary Talk
Presented by Dr. Saul RAMOS-SANCHEZ
on
21 Oct 2025
at
12:30
Type: Plenary Talk
Presented by Dr. Alexander James STUART
on
20 Oct 2025
at
18:00
Neutrinos, fundamental particles with extremely small masses, exhibit unique properties such as flavor oscillation and weak interaction with ordinary matter, which makes their detection challenging. This has led to the development of large-volume detectors, such as ultrapure water tanks equipped with photosensitive sensors capable of registering Cherenkov radiation. On the other hand, supernovae
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Presented by Mr. Sergio de Jesus GALARZA BALLESTEROS
on
21 Oct 2025
at
16:00
Quantum algorithms provide a promising framework in high-energy physics, in particular, for unraveling the causal configurations of multiloop Feynman diagrams by identifying Feynman propagators with qubits, a challenge analogous to querying directed acyclic graphs in graph theory. In this short talk, we are going to explore the Minimum Clique-optimised quantum Algorithm (MCA), an automated quantum
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Presented by Juan Pablo URIBE RAMIREZ
on
21 Oct 2025
at
16:45
After a very successful data-taking period between 2015 and 2018, and a key technical shutdown period to allow for the installation of new systems, Run 3 of the LHC is currently underway with nearly 300 fb$^{-1}$ of integrated luminosity delivered to the experiments. The CMS collaboration has released results spanning across multiple areas, from precision Standard Model measurements to new physics
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Presented by Dr. Cristina OROPEZA BARRERA
on
23 Oct 2025
at
09:00
Type: Plenary Talk
Presented by Prof. DAVID DELEPINE
on
20 Oct 2025
at
11:30
Measurements of long-range azimuthal correlations and strangeness enhancement in small systems such as pp and p--Pb collisions have revealed features reminiscent of nucleus--nucleus interactions, raising the question of whether genuine QGP droplets are formed. In this work, we study jet--medium interactions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV by analyzing particle production with respect to the
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Presented by Dr. Dushmanta SAHU
on
22 Oct 2025
at
17:45
Presented by Dr. Melina GOMEZ BOCK
on
22 Oct 2025
at
15:30
Type: Plenary Talk
Dark matter remains one of the greatest puzzles in physics. Traditional searches explore new parameter space, while astrophysical objects provide complementary probes of dark matter under extreme conditions. Recent progress and future prospects will be presented.
Presented by Dr. Maura RAMIREZ QUEZADA
on
20 Oct 2025
at
13:00
In this work, we propose a methodology to quantify the production of softened hadrons in pp, pA, and AA collisions at LHC energies, as well as their contribution to the $p_T$ spectrum, effective temperature, and mean $p_T$. Within the color string fragmentation framework, we describe the charged particle production through the Tricomi function, resulting from the convolution of the Schwinger mecha
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Presented by Ms. Diana ROSALES HERRERA
on
22 Oct 2025
at
16:45
The detection of cosmic rays, and of ionizing radiation in general, is commonly carried out using ionizable materials —where ions are produced— and photonizable materials —where photons are produced—; from these materials, radiation detectors are built. Because of this, practically any material can be used to detect ionizing radiation.
In this talk, we present the planning, design, constr
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Presented by Mr. Luis Alberto TORRES LUNA, Mr. Carlos PINEDO GUADARRAMA
on
22 Oct 2025
at
17:30
Cosmic rays are an abundant, and not completely known, natural source of ionizing and photonizing radiation from outer space, where multiple techniques have been invented to detect and study them. To detect and study them, we planned, designed and simulated a detection system consisting of two identical detectors based on cylindrical transparent acrylic rods of $20$ cm high and $10.16$ cm in diame
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Presented by Mr. Juan ROSAS TRUJILLO
on
21 Oct 2025
at
16:15
Effect of the magnetic dipole moment of the vector meson $K^{\ast}$ on the process $e^+ e^- \to K^+ K^- \ 2\pi^0$
Vector mesons possess $2s+1$ electromagnetic properties (where $s=1$ is their spin). Specifically, these are the electric charge, the magnetic dipole moment (MDM), and the electric quadrupole moment (EQM). Among these, only the electric charge is experimentally well-determined due
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Presented by Mr. Luis Alberto JIMÉNEZ PÉREZ
on
22 Oct 2025
at
16:15
The observation of charged lepton flavor violation would be a clear signal of new physics. In this work, we study flavor-violating three-body $\tau$ decays induced by the scalar leptoquarks $R_2$ and $S_1$. We consider a parameter space constrained by the radiative processes $\Delta a_\mu$ and $\ell_i \to \ell_n \gamma$, focusing on flavor structures where only the top or charm quark contributes.
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Presented by Mr. Juan Pablo HOYOS DAZA
on
21 Oct 2025
at
16:30
Type: Plenary Talk
Using statistical models, we analyze published multiplicity distributions for identified hadrons produced in heavy ion collisions in the energy range from 2.7 to 200 GeV. Our analysis enables the extraction of multiplicity distributions for multi-strangeness hadrons that have not yet been measured in experiments at lower energies. Furthermore, we obtain freeze-out parameters, such as temperature,
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Presented by Dr. Eleazar CUAUTLE
on
20 Oct 2025
at
17:30
Type: Plenary Talk
Presented by Dr. Eleazar CUAUTLE
Non-Abelian orbifolds in heterotic string theory have received limited attention, largely due to their significant computational challenges. This talk presents a new approach for a class of these orbifolds that permits analysis using methods adapted from Abelian compactifications. We outline the necessary generalizations of these methods and highlight our results, notably a successful reduction of
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Presented by Mr. Miguel Angel HERNÁNDEZ SEGURA
on
22 Oct 2025
at
18:15
Type: Plenary Talk
The Duffin Kemmer Petiau relativistic wave equation exists in en obscure corner of the history of QFT. It was used in the XX century to describe the properties of spin zero and spin one mesons. At the heart of the DKP theory is the meson algebra
$$\beta_\rho \beta_\mu \beta_\nu + \beta_\nu \beta_\mu \beta_\rho = g_{\mu \nu} \beta_\rho + g_{\mu \rho} \beta_\nu,$$
which has nontrivial 5 and 10 dim
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Presented by Dr. Selim GÓMEZ ÁVILA
on
20 Oct 2025
at
12:30
Presented by Dr. Genaro TOLEDO
The width difference of $\rho^{\pm}-\rho^0$ vector mesons and Final State Radiation terms in the $e^+e^-\to \pi^+\pi^-$ cross section are important inputs to evaluate the isospin breaking corrections in the dominant hadronic vacuum polarization contributions to the muon $g-2$, when using $\tau$ lepton data. So far, their contribution have been computed in sQED. Here, we compute the radiative corre
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Presented by Dr. Genaro TOLEDO
on
24 Oct 2025
at
16:30
DESI has recently provided us with hints that the accelerated expansion of the Universe might not be due to a cosmological constant after all, but rather a form of dynamical dark energy. At the same time, modular symmetries (widely studied in flavor physics) are showing up as key players in string theory, since modular invariance is built right into string compactifications. In this work, we highl
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Presented by Mr. Hansel Argyll GORDILLO RUIZ
on
21 Oct 2025
at
18:15
Type: Plenary Talk
In this talk we give an overview of some work on Standard Model extensions, with emphasis on the rôle of symmetries in understanding the masses and mixing in quarks and leptons. In top down models, we explain how the method of reduction of couplings leads to finite theories, which exhibit scale invariance, and point to underlying symmetries at the unification scale, relating the gauge and Yukawa
... More
Presented by Dr. Myriam MONDRAGON CEBALLOS
on
21 Oct 2025
at
09:00
I will describe how classical gravitational dynamics is extracted from quantum scattering amplitudes. I will explain how QFT tools are applied to the binary black hole inspiral problem.
Presented by Mr. Allan ALONZO-ARTILES
on
21 Oct 2025
at
16:30
We review the recent progress achieved, using Resonance Chiral Theory, in the
Hadronic Light-by-Light contributions to the muon anomalous magnetic moment.
We present the results for pseudoscalar and tensor pole contributions and pseudoscalar box contributions, and the construction of the form factors in our model. Furthermore, we discuss the problem of evaluating the tensor pole contributions in
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Presented by Mr. Emilio José ESTRADA GONZÁLEZ
Presented by Prof. Arely CORTES GONZALEZ
on
22 Oct 2025
at
09:30
We present research on classifying high-energy events for simulated Water Cherenkov detectors. The goal is to evaluate the performance of supervised learning models based on the Vision Transformer (ViT) architecture for distinguishing between two types of high-energy events: electron-neutrino and gamma events. The Vision Transformer achieved up to 85% accuracy and a maximum ROC-AUC of 0.95, signif
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Presented by Dr. Karen Salomé CABALLERO MORA
on
22 Oct 2025
at
09:00
In this work, a new scintillation detector called $\textbf{MD-ICN}$ was implemented in Mexico City over a two-year period, from 2023 to 2025. The detector, installed at the Nuclear Sciences Institute (UNAM), measures the muonic component of secondary cosmic radiation using a DAQ system based on fast and nuclear modular electronics, capable of identifying significant fluctuations caused by plasma m
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Presented by Diego MARTÍNEZ MONTIEL
on
21 Oct 2025
at
17:45
In this talk, we discuss how isospin-violating dark matter—particles that couple differently to protons and neutrons—affects the so-called neutrino fog, the irreducible background in direct detection experiments. We explore under which conditions this background can be mitigated for certain dark matter models.
Presented by Mr. Mario LAMPREA
on
21 Oct 2025
at
16:15
We study the four-body heavy baryon decay, including two leptons in the final state, of the form $B_A \to B_B P \ell_\alpha \ell_\beta$, which can be either a lepton number conserving (LNC) or a lepton number violating (LNV) process (where $B$, $P$ and $\ell$ are baryons, pseudoscalar mesons and leptons, respectively), including all kinematic allowed lepton pair possibilities. We work beyond the s
... More
Presented by Dr. Fabiola FORTUNA
on
22 Oct 2025
at
17:45
Resumen In this talk, we briefly review the Doublet Left-Right Symmetric Model (DLRSM) under the assumption of a minimal scalar potential. Within this framework, neutrino masses can be generated via the Inverse SeeSaw mechanism. We compare this scenario with the Minimal Left-Right Symmetric Model (MLRSM), which employs scalar triplets and realizes neutrino masses through the conventional SeeSaw me
... More
Presented by Moises ZELENY MORA
on
22 Oct 2025
at
16:00
We present a phenomenological study of single production of a vector-like top partner $T$ at a high-energy $e^+e^-$ collider, focusing on a mass-agnostic strategy centered on the recoil-mass observable. Using a CLIC-like setup at $\sqrt{s}=3~\text{TeV}$ and $\mathcal{L}=5~\text{ab}^{-1}$, we design a compact selection that remains robust across $m_T$ hypotheses by avoiding narrow mass windows and
... More
Presented by Mr. Higinio Manuel VALLE DELGADO
on
21 Oct 2025
at
17:30
Type: Plenary Talk
Presented by Dr. Maria Catalina ESPINOZA-HERNANDEZ
on
20 Oct 2025
at
10:30
Presented by Prof. Jurgen ENGELFRIED
on
24 Oct 2025
at
17:30
Type: Plenary Talk
Presented by Mr. Leon Manuel GARCIA DE LA VEGA
on
21 Oct 2025
at
11:30
The LHC has reported an excess in the decay H→Zγ, measuring twice the prediction made by the SM. Additionally, contributions from an off-shell Higgs boson in producing a pair of Z bosons have been announced for the first time. These results allow for the investigation of new physics contributions in the HZγ and HZZ vertices. This study explores the potential effects of CP violation on these Hi
... More
Presented by Mr. Alan Ignacio HERNÁNDEZ JUÁREZ
on
22 Oct 2025
at
17:30
Even though photomultiplier tubes technology is turning more than a century, it is still used with many advantages over recent solid-state technology like SiPM, with many applications in medicine, oil exploration, lidar communication, astrophysics, high energy physics, cosmic ray detection, etc. For cosmic ray detection and astrophysics applications, we designed, constructed, characterized, and ap
... More
Presented by Mr. César ALVAREZ ARREDONDO
on
21 Oct 2025
at
17:45
The experimental confirmation of neutrino mass and mixing disagrees with the picture of the Standard
Model, and thus provides a good motivation to look for unknown physics. A seesaw variant in which
neutrino masses are radiatively generated, with neutrinos characterized by Majorana fields and where a set
of three hypothetical neutral heavy leptons are present, has been considered in the present
... More
Presented by Dr. Monica SALINAS IBAÑEZ
on
21 Oct 2025
at
16:00
Presented by Prof. Isabel PEDRAZA
on
22 Oct 2025
at
15:00
In this work, I present research focused on the development of the Muon Identifier (MID) detector for the proposed ALICE-3 experiment at CERN — a key component for advancing the study of heavy-ion collisions at the LHC. The study centers on the design, construction, and optimization of a 1 × 1 m² MID prototype chamber, composed of 40 plastic scintillator bars, each measuring 5 × 100 × 1 cm³
... More
Presented by Mr. Yael Antonio VASQUEZ-BELTRAN
on
21 Oct 2025
at
17:30
We explore a dark matter model with a non-minimal coupling to gravity that enables decay into Standard Model particles. Using CLUMPY, we analyzed gamma-ray and neutrino fluxes from fourteen dwarf spheroidal galaxies, studying the impact of varying dark matter mass and the coupling parameter. Including neutrino oscillations allows us to estimate the detectable neutrino flux on Earth, providing pros
... More
Presented by Ms. Ana Fernanda SAN JUAN VILLEGAS
on
22 Oct 2025
at
16:15
This research explores the viability of the DarkBS model, an extension of the Standard Model (SM) designed to address the mystery of Dark Matter (DM). The model proposes a WIMP candidate and a new mediator boson, 𝑍′. We constrain the model parameters using a phenomenological approach, numerically computing limits on the DM relic abundance, bounds imposed by Direct Detection (DD) experiments,
... More
Presented by Mr. Gustavo BECERRIL HERNÁNDEZ
on
21 Oct 2025
at
15:45
Type: Plenary Talk
Nucleons (protons and neutrons) and pions are amongst the most fundamental entities in Nature. These constitute the bulk of visible matter and their origin and properties are orchestrated by the mechanisms linked to the strongest force in the universe, i.e. that described by quantum chromodynamics (QCD). In this talk, we present an overview of the internal structure of nucleons and pions, as revea
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Presented by Khépani RAYA
on
20 Oct 2025
at
12:00
Cosmic rays are detected in two forms: by detecting photons or by detecting ions, which are produced when cosmic radiation interacts with a material medium, such as water or plastic, or any material in any physical state. Cosmic radiation is composed of a variety of elementary particles and heavy nuclei, but especially muons, which are the most abundant, with electric charge, at sea level. To stud
... More
Presented by Salvador AGUILAR
on
21 Oct 2025
at
15:45
Presented by Dr. Melina GOMEZ BOCK
on
21 Oct 2025
at
12:00
Presented by Dr. Lizardo VALENCIA PALOMO
Quarkonia production in hadronic collisions is far from being understood as none of the existing models can correctly describe the wealth of available data. In particular LHCb and CMS experiments at the LHC have reported that Pythia 8 cannot reproduce the prompt J/ψ production in jets in proton-proton collisions at two different center of mass energies: the event generator predicts an important a
... More
Presented by Dr. Lizardo VALENCIA PALOMO
on
23 Oct 2025
at
10:00
We analyzed the recent controversies in the definitions of the Feynman-Dyson propagator for the field operator. In this work we present some insights with respect to this for spin 1/2. Both algebraic equation Det(ˆp−m) = 0 and
Det(ˆp+ m) = 0 for u− and v− 4-spinors have solutions with
p0 = ±Ep = ± √p2+m2. The same is true for higher-spin equations (or they may even have more comp
... More
Presented by Dr. Valeriy DVOEGLAZOV
on
22 Oct 2025
at
18:00
Presented by Dr. Aurore COURTOY
In this talk, we review recent methodological developments in the determination of Parton Distribution Functions (PDFs) from experimental data within the framework of perturbative QCD, as carried out by the CTEQ-TEA group. The precision and accuracy of proton PDFs play a crucial role in the future of precision collider physics. Recent work has focused on quantifying the uncertainties of PDF sets,
... More
Presented by Dr. Aurore COURTOY
on
24 Oct 2025
at
09:00
We study the one-loop renormalization of massless matter fields in the $(1,0)\oplus(0,1)$ representation of the Restricted Lorentz Group. The model is constructed with the most general parity-invariant kinetic term and includes all the independent dimension-4 parity-invariant self-interactions available in this representation. Its free Lagrangian reproduces the massless limit of three theories pre
... More
Presented by Mr. Armando De La Cruz RANGEL PANTOJA
on
21 Oct 2025
at
18:00
Kinematic reconstruction and particle identification in water-Cherenkov detectors are typically performed with maximum-likelihood methods such as fiTQun. We assess deep neural networks as an alternative for e−/mu− separation and kinematic reconstruction. Using particle-gun simulations of electrons and muons generated with WCSim v1.12.19 for the IWCD detector, we trained on fully contained even
... More
Presented by Mr. Gilberto RODRIGUEZ PRADO
on
22 Oct 2025
at
18:15
Presented by Mr. Castaneda ALFREDO
Artificial intelligence (AI) methods are increasingly transforming data analysis in high-energy physics. Within the CMS experiment, AI is being investigated not only to enhance the efficiency and accuracy of established analyses, but also to enable novel strategies that move beyond traditional approaches. In particular, anomaly detection has drawn significant attention, as it enables model-indepen
... More
Presented by Dr. Alfredo CASTANEDA
on
23 Oct 2025
at
09:30
ABSTRACT:
Since the discovery of cosmic rays, they have been of great scientific interest -such as searching for components, energy spectrum, astro physic sources, origin, and the way to detect and study them-. To accomplish these activities, a vast variety of detectors have been designed and operated. We have planned, designed, constructed, characterized and operated a small two channel cosmic r
... More
Presented by Orlando HERNÁNDEZ
on
22 Oct 2025
at
18:00
Type: Plenary Talk
Presented by Dr. Karla CANTÚN
on
20 Oct 2025
at
16:00
The Cryogenic Underground Observatory for Rare Events (CUORE) is a neutrinoless double beta ($0\nu\beta\beta$) decay experiment employing bolometric detectors that has reached the one-tonne scale. CUORE consists of an array of 988 TeO$_2$ crystals acting as both the source and the detector for the search of $0\nu\beta\beta$ decay in 206 kg of $^{130}$Te. CUORE has been taking physics data since 20
... More
Presented by Jorge TORRES
on
21 Oct 2025
at
13:00
Exploiting the capabilities of next-generation neutrino experiments can significantly advance the search for axion-like particles (ALPs). We propose that short-baseline reactor experiments using large organic liquid scintillator detectors are ideal for such a search. These detectors can identify ALPs produced in the reactor core via Primakoff- and Compton-like processes through detection channels
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Presented by Laura DUQUE HERRERA
on
22 Oct 2025
at
16:30
In this work we extend a previous analysis of $\tau\to KK\pi\nu_\tau$ decays to include all possible tau decays into three I$\ne$0 mesons using Resonance Chiral Theory. We constrain the couplings in the Lagrangian by imposing the high energy behaviour of the form factors. We reproduce results from the previous work, namely in the $KK\pi$ channel.
Presented by Dr. Adolfo GUEVARA
on
22 Oct 2025
at
16:00
The enhancement mechanism due to the resonant properties of the \rho and \omega mesons, which are close in mass, are analysed when such resonances carry different momenta. Considerations from the particular process where they appear to the individual resonant features are at play for the appearance of the global resonant manifestation. In this work, we first consider the process e^{+} e^{-} \to \
... More
Presented by Mr. Leonardo ESPARZA
on
22 Oct 2025
at
16:45
In this contribution, we present the current status of the Hyper-Kamiokande experiment, in which Mexico is participating through a collaboration between Universidad de Guadalajara and Tecnológico de Monterrey. We describe the work being carried out by these institutions and present new results on the sensitivity of the experiment.
Presented by Prof. Saul CUEN-ROCHIN
on
22 Oct 2025
at
13:00
The following calculations extend the results of the paper published on 1992 by
K¨uhn and Mirkes (K&M), for the particular case of interference between an
antisymmetric tensor and one (axial-)vector current.
The KM analysis was based on a formalism designedto systematically handle reactions of the type τ → h1h2h3ντ , for h_{1,2,3} being any meson in the lighter SU(3) flavour octet, by co
... More
Presented by Mr. Daniel Arturo LÓPEZ AGUILAR
Session:
Parallel Talks - 2
Luminosity measures the density of collisions at the LHC and is a key parameter for both physics analyses and accelerator operations. Its calibration is performed annually through a series of scans called the Van der Meer program (VdM). This project presents a preliminary analysis of the variable length scale scan, from the 2024 VdM program. The main goal is to determine the correction to the lumi
... More
Presented by Ms. Elena VELAZQUEZ AGUILERA
on
21 Oct 2025
at
16:45
Type: Plenary Talk
Presented by Mr. Jesús MIRANDA
The sensitivity of the rare decay process $\phi\to\pi^0\eta\gamma$ to signatures of a leptophobic boson in the MeV-GeV mass range is analyzed in this talk. First, we improve the description of the dominant scalar contribution. Next, we incorporate an explicit B-boson resonance exchange alongside the Standard Model (SM) contributions from vector and scalar meson exchanges. By utilizing experimental
... More
Presented by Jesús MIRANDA
on
21 Oct 2025
at
10:30
We calculate the neutrino-electron elastic scattering cross section 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 and comment on the possibility to distinguish between Dirac and Majorana neutrinos.
Presented by Dr. Marco Antonio BEDOLLA
on
23 Oct 2025
at
11:30
Presented by Dr. Luis HERNANDEZ
on
22 Oct 2025
at
11:30
The standard Feynman rules used for perturbative calculations in quantum chromodynamics (QCD) and quantum electrodynamics (QED) are derived from a Lagrangian that is first-order in derivatives. It includes a three-point vertex which obscures the precise disentangled manner in which spin and momentum are interchanged during the interactions. An unambiguous understanding of this interchange is insig
... More
Presented by Dr. Victor Miguel BANDA GUZMAN
on
21 Oct 2025
at
18:00
We realized a phenomenological study of top-antitop production in the environment of CERN's Compact Linear Collider project in its third stage. We followed the approach of Standard Model Effective Filed Theory (SMEFT), using the Warsaw basis for the set of mass-dimension 6 operators. From this basis, we analyzed separately the five operators that generate contributions at tree-level to the process
... More
Presented by Mr. Pablo VILLASEÑOR INDA
on
22 Oct 2025
at
16:30
Type: Plenary Talk
Presented by Prof. Lorenzo DIAZ-CRUZ
on
20 Oct 2025
at
16:30
Type: Plenary Talk
Presented by Dr. Héctor NOVALES SÁNCHEZ
on
21 Oct 2025
at
10:00
Type: Plenary Talk
Presented by Prof. Mauro NAPSUCIALE
on
20 Oct 2025
at
09:30
