Event calendar file
25-29 November 2013
Hotel Victoria
Mexico/General timezone
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Contribution List
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115
We have studied the $\tau^-\to K^-\eta^{(\prime)}\nu_\tau$ decays within Chiral Perturbation Theory including resonances as explicit degrees of freedom. We have considered three different form factors according to treatment of final-state interactions. In increasing degree of soundness: Breit-Wigner, exponential resummation and dispersive representation. We find that although the first one fails i
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Presented by Dr. Pablo ROIG
Presented by Pablo ROIG
on
27 Nov 2013
at
18:00
Presented by Mario RODRÍGUEZ CAHUANTZI
on
27 Nov 2013
at
15:10
ALICE is one of the four main experiments of the LHC at CERN. Located 40 m underground with 30 m of overburden rock it can also operate to detect atmospheric muons produced by cosmic ray interactions in the atmosphere. The analysis of the data collected with cosmic triggers from 2010 until 2013, corresponding to around 32 days of live time, will be presented. Exploiting the specific capability of
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Presented by Mr. Mario RODRÍGUEZ CAHUANTZI
The origin and composition of the Ultra-High Energy Cosmic Rays (UHECR) is currently one of the major questions in astroparticle physics. Gamma Ray Bursts (GRBs) have been considered among the possible sources of UHECR that, according to the theoretical models, should be accompanied with a UHE neutrino flux detectable at neutrino telescopes such as IceCube. Moreover, the IceCube
Collaboration
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Presented by Mr. Alexander PARADA
Presented by Alexander PARADA
on
26 Nov 2013
at
17:20
Theories with extra-dimensional coordinates provide interesting mechanisms to achieve ruptures of symmetries. We present other alternative to the usual geometric considerations to achieve a supersymmetric rupture for an extra-dimensional Wess-Zumino model.
Presented by Mr. Jose GARCIA
Canonical quantization of spin 1 matter fields is studied in the framework of the parity projection formalism. Preliminary results on the propagator and three-point function are presented.
Presented by Mr. Rodolfo FERRO
The contribution of scalar and pseudoscalar couplings for neutrino-electron scattering are studied. After a discussion of a model independent approach, we analyze the case of the type III two Higgs doublet model and obtain constraints for some elements ot the leptonic Yukawa couplings mixing matrix.
Presented by Dr. J. H. MONTES DE OCA Y.
Presented by J. H. MONTES DE OCA Y.
on
26 Nov 2013
at
17:00
Latest Lattice results on D form factors evaluation from first principles show that the standard model (SM) branching ratios prediction for the leptonic Ds→ℓνℓ decays and the semileptonic SM branching ratios of the D0 and D+ meson decays are in good agreement with the world average experimental measurements. It is possible to disprove New Physics hypothesis or find bounds over several model
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Presented by Ms. Vannia GONZÁLEZ MACÍAS
Presented by Vannia GONZÁLEZ MACÍAS
on
25 Nov 2013
at
17:20
The $Z^\prime$ one-loop effects on the flavor-violating $b\to s \gamma$ process are analyzed. We employ the sequential $Z$ model in order to establish a bound for the flavor-violating $Z^\prime bs$ coupling, $|\Omega_{bs}|^2$. We found a bound of the order of $10^{-1}$ for the mentioned coupling in the mass range 2 TeV$<m_{Z^\prime}<$3 TeV.
Presented by Mr. David ESPINOSA GÓMEZ
We will describe a custom-made data acquisition system to sample the photomultiplier signal from Water Cherenkov radiation detectors at 100MSPS based on FPGA to evaluate their performance, and to measure parameters of our interest like rate, trace and more; which is easy to build, low cost and portable. We will present measurements of these detectors, and presents algorithms described in hardware
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Presented by Mr. Conde RUBEN
Presented by Karim Gibrán HERNÁNDEZ CHAHÍN
on
28 Nov 2013
at
17:00
We present the design optimization of a SRF quarter wave cavity for a compact light source aplications as a electron gun. The optimization are in terms of some geometrical parameters and their influence in the beam emittance.
Presented by Mr. Karim Gibrán HERNÁNDEZ CHAHÍN
We determine the magnetic dipole moment of the rho meson using preliminary data from the BaBar Collaboration for the e+ e- -> pi+ pi- 2pi0 process, in the center of mass energy range from 0.9 to 2.2 GeV. We describe the gamma* -> 4pi vertex using a vector meson dominance model, including all intermediate resonance contributions. We find that mu_rho = 2.1 \pm 0.5 \: [e/2 m_\rho]. In addition, we o
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Presented by Dr. Genaro TOLEDO
Presented by Genaro TOLEDO
on
26 Nov 2013
at
15:40
The low-energy physics of quantum chromodynamics (QCD) and ferromagnets is dominated by Goldstone bosons. While the effective theory of QCD - chiral perturbation theory - is well established in the particle physics community, the systematic studies of ferromagnetic
systems within the effective Lagrangian framework are not well-known. We analyze the low-temperature properties of ferromagnets in on
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Presented by Prof. Christoph Peter HOFMANN
Presented by Christoph Peter HOFMANN
on
29 Nov 2013
at
18:00
The main objective of this research work is to study electromagnetic couplings of baryons in an
extension of the quark model, the Unquenched Quark Model (UQM), where the contributions of the quark-antiquark pairs are taken into account.
The interaction Hamiltonian is obtained from quantum field theory with in the non
relativistic limit and includes electromagnetic transitions between quarks or
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Presented by Mr. Hugo GARCÍA TECOCOATZI
Presented by Adnan BASHIR
on
27 Nov 2013
at
12:30
In this talk, we shall discuss some methods to systematically compute
the matter spectra of string compactifications based on non-Abelian
orbifolds and some of its appealing features which might shed some light
into the physics of flavor.
Presented by Dr. Saul RAMOS SANCHEZ
Presented by Kirill PROKOFIEV
on
26 Nov 2013
at
15:10
Nowadays, there is a increasing number of neutrino telescopes dedicated to
open and explore this astronomical window. Recently, the ICECUBE observatory
detected several extraterrestrial PeV neutrino events whose origin is unknown.
Active Galactic Nuclei with gamma ray emission are found among the probable
candidates of these events. In this work, a particle physics mechanism for the
productio
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Presented by Dr. Juan Carlos ARTEAGA VELAZQUEZ
As part of the motivation for the present work we will summarize the reasoning behind a Medium Energy Electron-Ion Collider (MEIC) from the nuclear physics viewpoint, accompanied by the properties that a machine of this nature should have to fulfill the expectation of the experiments, focusing down on the high luminosity requirement and crab crossing scheme as one of the proposed ways to achieve i
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Presented by Mr. Alejandro CASTILLA
on
26 Nov 2013
at
18:50
Over the last decades, there have been notorious advances in our understanding of nonabelian gauge theories in the deep infrared regime in a continuum (i.e., non-lattice) description, both on the conceptual and on the calculational side. As for the latter aspect, progress has initially been achieved through the solution of the Dyson-Schwinger equations of the theory, while more recently Callan-Sym
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Presented by Prof. Axel WEBER
Gamma-ray bursts (GRBs) are expected to provide a source of ultra high
energy cosmic rays, accompanied with potentially detectable neutrinos
at neutrino telescopes. Recently, IceCube has set an upper bound on
this neutrino flux well below theoretical expectation. We investigate
whether this mismatch between expectation and observation can be due
to neutrino decay. We demonstrate the
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Presented by Mr. LUIS DORAME
I will review some of the recent progress made in the field of Lattice QCD. Topics include hadron spectroscopy and structure, CKM matrix elements and flavour physics, and the hadronic contribution to the anomalous magnetic moment of the muon.
Presented by Dr. James ZANOTTI
Presented by Néstor QUINTERO POVEDA
on
26 Nov 2013
at
18:30
It is shown that particle physics experiments at low energies may reveal complementary information on theories beyond the standard model (BSM). In particular, we will show that neutrino experiments with a very low threshold detection can set relevant constraints in Leptoquark models. super symmetric models, on possible CP violation signals, tensorial non-standard interactions among others. Further
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Presented by Dr. Juan BARRANCO MONARCA
Presented by Juan BARRANCO MONARCA
on
26 Nov 2013
at
16:10
We present the analysis of cosmic rays measured with the Pierre Auger Observatory using several independent methods all of which rely on fluorescence measurements to establish the energy of the events.
The spectrum obtained with showers below 60 degrees obtained for energies above 3 EeV with the surface detector has been extended to lower energies combining it to the spectrum obtained with fluore
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Presented by Ms. Alejandra PARRA
Presented by Alejandra PARRA
on
28 Nov 2013
at
17:40
We study the formation of a tetraquark state (q-q-qbar-qbar) from the presence or two initially uncorrelated q-qbar states, using a MC simulation based on a QCD-inspired model (String-Flip).
Incorporating an effective many-body potential between particles, in which we consider a difference between a molecular meson state and a tetraquark, we exhibit preliminary results of the characterization of
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Presented by Mr. Ivan TOLEDANO
The 2d XY model exhibits an essential phase transition, which was predicted long ago — by Berezinskii, Kosterlitz and Thouless (BKT) — to be driven by the (un)binding of vortex–anti-vortex pairs. This transition has been confirmed for the standard lattice action, and for actions with distinct couplings, in agreement with universality. Here we study a highly unusual formulation of this model,
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Presented by Dr. Urs GERBER
Presented by Urs GERBER
on
27 Nov 2013
at
15:40
Presented by Vasiliki MITSOU
on
28 Nov 2013
at
10:20
Dark matter remains one of the most puzzling mysteries in Fundamental Physics of our times. Experiments at high-energy physics colliders are expected to shed light to its nature and determine its properties. This review talk focuses on recent searches for dark-matter signatures at the Large Hadron Collider, either within specific theoretical scenarios, such as supersymmetry or models with extra di
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Presented by Dr. Vasiliki MITSOU
In this work I provide a summary of the advances made towards the understanding of two complementary issues. Using a non- perturbative approach, I explore the consequences of a momentum- independent interaction as an ad-hoc tool to rebuild the pion distribution amplitude (PDA). The PDA is obtained through its moments using the Schwinger-Dyson formalism within QCD in the rainbow-ladder approximatio
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Presented by Ms. Rocio BERMÚDEZ RAMOS
Presented by Aurore COURTOY
on
26 Nov 2013
at
12:30
The description of the internal structure of hadrons is one of the main goal of QCD. At moderate energy scales, the hadronic representation succeeds to the partonic description, rendering challenging the description of the dynamics of scattering processes and hadronic structure. The information on the hadron structure is embodied in the long distance contributions which are defined as Parton Distr
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Presented by Dr. Aurore COURTOY
Presented by Daniel TAPIA TAKAKI
on
26 Nov 2013
at
11:40
Presentation of the latest results on the searches of Physics Beyond the Standard Model done by the CMS (Compact Muon Solenoid) experiment of the LHC (Large Hadron Collider).
Presented by maria isabel PEDRAZA MORALES
Presented by Maria Isabel PEDRAZA MORALES
on
25 Nov 2013
at
16:10
Arteaga Juan Carlos
High-energy neutrinos from FRII-type galaxies induced by gamma-ray interactions with the gas and dust at the source
Bello Héctor
Sphericity measurement in proto-proton collisions en the ALICE experiment at LHC.
Bermudez Ramos Rocio Angelica
Perturbative and Non-Perturbative complementary aspects in QCD
Bautista Irais, Wolfgang Bietenholz, Urs Gerber, Christoph Hof
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Proton structure functions are measured in electron-proton collsision through inelastic scattering of virtual photons with virtuality Q on protons; x denotes the momentum fraction carried by the struck parton. Proton structure functions are currently described with excellent accuracy in terms of scale dependent parton distribution functions, defined in terms of collinear factorization and D
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Presented by Dr. Martin HENTSCHINSKI
Presented by Nick MAVROMATOS
on
29 Nov 2013
at
12:30
Presented by Aftab AHMAD
on
27 Nov 2013
at
17:40
The CMS muon system consists on Drift Tubes (DTs) in the barrel region, Cathode Strip Chambers
(CSCs) in the end-cap region and Resistive Plate Chambers (RPCs) in both regions. The RPCs with
their excellent time resolution were chosen as dedicated muon trigger detector for the CMS
experiment. After the Long Shutdown 1 (LS1) the LHC luminosity should reach 1034 cm-2 s-1, and
because of that to
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Presented by Mr. Severiano CARPINTEYRO
The pseudo-rapidity distribution of charged particles at relativistic heavy ion collisions is described in the string percolation model with the same power law dependence on the collision energy for different nucleus-nucleus (NA − NA) species.
Presented by Dr. Irais BAUTISTA
Presented by Eduardo PEINADO
on
28 Nov 2013
at
12:30
The existence of non-baryonic Dark Matter (DM) is well established by cosmological and astrophysical probes, however its detailed nature still remains elusive. Among the extensions of the Standard Model explaining the DM relic aboundance, the simplest one is the addition of an inert scalar to the theory. In this talk I intend to give a brief review of this scenario and its possible connection wit
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Presented by Dr. Eduardo PEINADO
We present a non-perturbative study of the lambda phi**4
model in 2- and 3-dimensional non-commutative spaces.
The mapping onto a Hermitian matrix model enables the treatment
by numerical simulations. A new phase occurs where translation
symmetry is spontaneously broken, so that stripe patterns
dominate. In d=3 we show that this phase the dispersion
relation is deformed in the IR sector, i
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Presented by Dr. Wolfgang BIETENHOLZ
Weak scale supersymmetry stands as one of the most studied and motivated Standard Model extensions. Even though no
experimental evidence for it has been reported, many searches are still ongoing. Signs of supersymmetry are searched for in various
topologies that lead to events with abnormal production of missing transverse momentum, jets, leptons, photons, third generation
fermions, gauge bos
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Presented by Dr. Arely CORTES GONZALEZ
Presented by Arely CORTES GONZALEZ
on
25 Nov 2013
at
15:10
The CERN Large Hadron Collider (LHC) has become a very successful discovery machine. On 4 July 2012 the discovery of a new particle was announced, a candidate to be the famous Higgs boson. This extraordinary discovery was possible due to the excellent performance of the machine. However, an electron cloud and related effects have been detected in the LHC and have proven to be a problem for the opt
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Presented by Dr. Humberto MAURY CUNA
on
28 Nov 2013
at
18:30
Presented by Mr. Humberto MAURY CUNA
Presented by Alejandro GAONA
on
25 Nov 2013
at
17:00
Implication of spacetime anisotropic scalings for field theory and gravity are studied. In particular a review of Horava gravity is given and an electrodynamics invariant under these scalings is presented. Moreover, it is studied curved spacetimes invariant under these scalings and it is shown that are solutions of the Einstein's equations, here the matter is given by a Proca field. Also it is stu
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Presented by Mr. Alejandro GAONA
A calculation of the $Z_H \to \gamma H$ decay for extra neutral $Z_H$ gauge boson predicted in Littlest Higgs model is presented. Our calculations involve the main contributions at one-loop level induced by fermions, scalars and gauge bosons. Preliminary results show a very suppressed branching ratio of the order of $10^{-6}$.
Presented by Dr. Ismael CORTES MALDONADO
Presented by Xiomara GUITIÉRREZ
on
27 Nov 2013
at
17:00
Presented by Juan Carlos ARTEAGA
on
28 Nov 2013
at
15:10
KASCADE-Grande is an air-shower observatory, located in Karlsruhe, Germany, devoted to
the detection of cosmic rays with energies in the range of 10 15 and 1018 eV. This energy region
is of particular interest for cosmic ray astrophysics, since it is the place where some clues
about the origin and acceleration mechanism of galactic cosmic rays may be found and where
several models predict the
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Presented by Dr. Juan Carlos ARTEAGA VELAZQUEZ
Presented by Luis VILLASEÑOR
on
27 Nov 2013
at
09:30
The Pierre Auger Observatory was designed to measure ultra-high energy cosmic rays above 10^18 eV with high accuracy using a hybrid air shower detection technique. A Surface Detector (SD) with 1600 water-Cherenkov stations on a 1500 m triangular grid covers an area of 3000 km2 . The atmosphere above the array is viewed by a Fluorescence Detector (FD) with 24 telescopes at 4 sites in the periphery
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Presented by Dr. Enrique VARELA
Presented by Enrique VARELA CARLOS
on
28 Nov 2013
at
17:20
Presented by Javier COBOS-MARTINEZ
on
28 Nov 2013
at
18:00
We project onto the light-front the pion's Poincare-covariant
Bethe-Salpeter wave-function, obtained using two different approximations to the kernels of QCD's Dyson-Schwinger equations.
At the hadronic scale both computed results are concave and significantly broader than the asymptotic distribution amplitude. Independent of the kernels, the emergent phenomenon of dynamical
chiral symmetry b
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Presented by Dr. Javier COBOS-MARTINEZ
This work presents the sensibility of $h\to ZZ*\to Zll$ decay with respect to triple Higgs coupling, these effects are presented at one loop level. The behavior of this coupling is so relevant for know the Higgs boson properties and testing the higgs potencial. Addition to present the Standard Model results, we present some posibilities beyond SM.
Presented by Dr. Carlos HONORATO
Presented by Carlos HONORATO
on
28 Nov 2013
at
15:40
The next generation of experiments devoted to study extreme energy cosmic rays will be at satellites and space platforms. Recent experiments have show that UV light background is more complex than previous models. Therefore, the observation of transient luminous events (TLEs) at the upper atmosphere will be important. Information abouth time and space evolution of this very fast phenomena may need
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Presented by Ponce EPIFANIO
The action for a (3+1)-dimensional particle in very special relativity is studied. It is proved that massless particles only travel in effective (2+1)-dimensional space-time. It is remarkable that this action can be written as an action for a relativistic particle in a background gauge field and it is shown that this field causes the dimensional reduction. A new symmetry for this system is found.
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Presented by Dr. Juan Manuel ROMERO
Presented by Anamaria FONT
on
29 Nov 2013
at
11:40
