Event calendar file
21-27 October 2018
Hermosillo, Sonora
MST timezone
- jose.benitez@cern.ch
Support
Poster session
Place
Location: Hermosillo, Sonora
Address: Vado del Río #9, Col. Villa de Seris, Hermosillo, Sonora
Date:
22 Oct 18:30 - 19:30
Timetable | Contribution List
Displaying 23
contributions
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23
Session:
Poster session
The top quark is the heaviest elementary particle known, thus it has a wide range of decay modes. Studying this fermion phenomenology it could be possible to explore New Physics (NP) effects. If we onsider the Standard Model (SM) Strong and Electro-Weak interactions, Flavor Changing mediated by Neutral Currents (FCNC) do not exist at tree level and such processes just can success at one loop level
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Presented by Mr. Erick MUNIVE VILLA
Session:
Poster session
In this work we study the annihilation of dark matter, considering it as a neutral particle with magnetic and$/$or electric moments not null. The calculation of the effective section of the process $\chi\bar{\chi} \rightarrow \gamma\gamma$ is made starting from a general form of coupling $\chi\bar{\chi}\gamma$ in the framework of an extension of the Standard Model. We found, when taking into acc
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Presented by Mr. Concepción ARELLANO CELIZ
Session:
Poster session
The chromomagnetic dipole moment (CMDM) and chromoelectric dipole moment (CEDM) of the top quark are calculated at the one-loop level in the framework of the two-Higgs doublet model with four fermion generations (4GTHDM), which is still consistent with experimental data and apart from new scalar bosons ($H^0$, $A^0$, and $H^\pm$) and quarks ($b'$ and $t'$) predicts new sources of $CP$ violat
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Presented by Mr. Alan Ignacio HERNÁNDEZ JUÁREZ
Session:
Poster session
Magnetic fields are present in compact objects affecting its structure. The anisotropy produced by the magnetic field in the pressures suggests the necessity of using structure equations considering the axial symmetry of the magnetized system. In this work, we propose a model that generalizes the Tolman-Oppenheimer-Volkoff equations for the magnetized case and discuss some preliminary results. Our
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Presented by Prof. Aurora PEREZ MARTINEZ
Session:
Poster session
In this work we have studied the top quark decay $t\rightarrow c\gamma$ mediated by a neutral gauge boson $V$ which produces flavour changing couplings at tree level. Such a boson can be induced in some theories beyond the Standard Model with an extended gauge group. $t\rightarrow c\gamma$ decay is induced by one loop and the amplitude is generated by three Feynman diagrams in the unitary norm: tw
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Presented by Ms. Jessica LOPEZ SANCHEZ
Session:
Poster session
En este trabajo presentamos las contribuciones dependientes de espín de las correcciones radiativas a los decaimientos semileptónicos de kaones con el muón saliente polarizado.
Nuestros resultados, independientes de modelo a orden (alpha/pi)(q/M_1), se presentan a nivel de gráfica de Dalitz, como integrales que contribuyen a las componentes longitudinal y normal de la polarización del muó
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Presented by Mayra Jacaranda SÁNCHEZ GONZÁLEZ
Session:
Poster session
We perform an effective field theory analysis of the L -> l' X (gamma) decays, where L=tau, mu; l'=mu,e and X is an unknown particle with spin 0 or 1 and with either parity, which mediates LFV processes. This mechanism of LFV decays may also explain (for reasonable values of M_X and its couplings) the muon g-2 anomaly. We analyze angular observables that can unveil the underlying structure of such
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Presented by Ms. Bibiana Marcela MARÍN
Session:
Poster session
We consider the most general description of tau to K pi nu_tau decays including SM operators up to dimension six with massless neutrinos. All hadron form factors are built on chiral perturbation theory by using dispersion relations and lattice input. Of particular interest are the following observables: CPV in tau to K_S pi nu_tau decays (unexplained BaBar anomaly), the K^- pi0 spectrum (particula
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Presented by Mr. Javier RENDON
Session:
Poster session
We perform an effective field theory analysis of the τ−→π−π0ντ decays, that includes the most general interactions between Standard Model fields up to dimension six, assuming left-handed neutrinos. We constrain as much as possible the necessary Standard Model hadronic input using chiral symmetry, dispersion relations, data and asymptotic QCD properties. As a result, we set precise (comp
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Presented by Mr. Jesús Alejandro MIRANDA HERNÁNDEZ
Session:
Poster session
We study the dark matter stability due to the existence of an additional U(1) gauge symmetry. Furthermore, we generate neutrino masses at the radiative level via an effective dimension five Weinberg operator. The presence of an extra Abelian symmetry allows accommodating the recent LHCb anomalies in B → K(K∗)μ+μ− decays,by fixing some parameters of the model.
Presented by Mr. Dario J BLANDON URIBE
Session:
Poster session
Precise flavor observable measurements are an indirect and powerful evidence of Physics Beyond the Standard Model (BSM). Flavor observables are sensitive to high energy scales and to direct searches of new particles. A very important observable can be the partial decay reason, which can be studied in four important groups: leptonic and semileptic decays at tree level, rare purely leptonic decays,
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Presented by Ms. Flores Meraz YESICA SONIA
Session:
Poster session
A study of the flavor changing decays $t \to cV$ $(V = \gamma,Z)$ and $t\to cH$ is presented in the framework of a minimal scalar leptoquark model in which the standard model is augmented with a single scalar leptoquark doublet with $SU(3)_c\times SU(2)_L\times U(1)_Y$ quantum numbers $(3,2,7/6)$. This model predicts a non-chiral charge $5/3e$ leptoquark coupling to up quarks, and a chiral charge
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Presented by Mr. Ricardo SÁNCHEZ VÉLEZ
Session:
Poster session
Thanks to the discovery of the Higgs Boson, the door has opened to new studies regarding Higgs Boson Physics. An ideal and novel place to carry out such studies are the muon colliders, for which the interest to focus on the feasibility of processes in the Muon Accelerator Program (MAP) arose: muon collider proposed in Fermilab whose objective is to reach energies up to 4 TeV. The study of flavor v
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Presented by Mrs. Marianne GUIOT
Session:
Poster session
We analyze the spontaneous symmetry breaking $SSB$ in the Higgs potential corresponding to the standard model extension with the horizontal symmetry group $S_3$ ($SM \otimes �S_3$), including Charged-Parity symmetry breaking (CPB) sources. In this context, we study the repercussions on the Higgs physics, as well as, the implications on CPB symmetry. In particular, one works taken into a count
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Presented by Mr. Javier MONTA\~NO-PERAZA
Session:
Poster session
Polymer quantum mechanics is a toy model for Loop Quantum Gravity that
take some techniques from this theory and apply them to mechanical systems with
finite degrees of freedom. In this work we apply polymer formalism to the Liouville
Model.
Presented by Mr. Johann HERNÁNDEZ
Session:
Poster session
The uncertainty relation in a way to establish that the dispersion of two incompatible (non-interchangeable) observables can not go simultaneously to zero, which means that the observables in question can not be measured at the same time. Gamba [4] and Castoldi [5] found that the minimum bound in the Heisenberg uncertainty relation is increased by a term associated with the anticommutator of the o
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Presented by Mr. Goosline PEREIRA
Session:
Poster session
Motivated by the observation that there is ample room for new physics in B0/B0_s to e+ e- decays (despite the accurate measurement of B_s to mu mu and the limits on B to mu mu, in nice agreement with the SM, this fact is due to helicity suppression in these decays) we study the corresponding problem in D0 decays, with the interplay between long-distance and short-distance effects complicates the t
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Presented by Mr. Enrique RAMÍREZ
Session:
Poster session
In this work we present preliminary results on the possible description of dark matter as spin-one matter fields, i.e. fields transforming in the (1, 0) $\oplus$ (0, 1) representation of the Homogeneous Lorentz Group. Considering dark matter as standard model singlets we find three possible dimension-four terms in the effective theory.
Using experimental data on direct and indirect detection expe
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Presented by Mrs. Haydee HERNÁNDEZ-ARELLANO
Session:
Poster session
We consider Dark Matter-SM interactions mediated by spin-one fields, in a general EFT framework. We constrain some of the Lagrangian couplings using the Z invisible width and compute the relevant annihilation cross-sections among dark matter pairs. Relic abundance of these will be computed soon, to search for viable explanations of the measured dark matter energy density.
Presented by Ms. Fabiola FORTUNA
Session:
Poster session
It is known that in high multiplicity nuclear collisions the mass spectra behave as a gamma function, while at low multiplicities a typical Poisson distribution is observed. We propose a dependent distribution of the parameters of the model that characterizes the fluctuations event by event depending on an effective number of initial strings (as a parameter of the centrality in pp collisions) that
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Presented by Mr. J. Ricardo ALVARADO GARCÍA
Session:
Poster session
We study the thermodynamic properties of a non-relativistic vector boson gas, in presences of an external magnetic field. Bose-Einstein condensate is obtained and it depends on all the parameters involved in the problem: temperature, particle density and magnetic field. An spontaneous magnetization appears at low temperature as a consequence of the condensed state. Even in the non-relativistic ca
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Presented by Ms. Lismary de la Caridad SUÁREZ
Session:
Poster session
We present a qualitative and quantitative analysis of the Yukawa matrices generation, as well as, the Standard Model quartic Higgs couplings expressed as functions of the gauge parameters within the framework of MSSM. In this extension, the quartic Higgs couplings can be regulated through D-terms and it is also possible to generate radiatively the Yukawa matrices for the light generations as func
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Presented by Mrs. Carolina RAMÍREZ ALVARADO
Session:
Poster session
We present the study of Universal Dual Amplitudes (UDA) for the $gg\to H$ amplitude in the heavy top-quark limit at NNLO from the Loop-Tree Duality (LTD) approach. The LTD approach is a novel perturbative method in QFT that establishes a relation between loop-level and tree level scattering amplitudes. From this approach we found a universal behaviour which allows us to write a compact form of the
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Presented by Mr. Rentería-Olivo ANDRÉS ERNESTO
