Event calendar file
4-12 November 2010
Morelia, Michoacan
Mexico/General timezone
- arteaga@ifm.umich.mx
Support
Poster
Place
Location: Morelia, Michoacan
Room: Main Hall, Hotel Fiesta Inn
Date:
12 Nov 10:00 - 13:30
Contribution List
Displaying 32
contributions
out of
32
En este trabajo estamos analizaremos la producci\'{o}n de
bosones de Higgs cargados en dispersiones muy inel\'asticas $e^{-}p$,
en el contexto del 2HDM-III a energ\'{i}as del LEP/LHC. Para esto, utilizaremos
el modelo de partones y haremos uso de la aproximaci\'on de
Weizsäcker-Williams. Además, compararemos nuestros resultados
con aquellos que se obtienen al hacer el c\'alculo sin la apro
... More
Presented by Luis Salvador MIRANDA PALACIOS
on
12/11/2010
at
16:00
Tatyana II satellite is the second from University Satellite Program, which was initiated by the Moscow State University with the participation of the Benemerita Universidad Autonoma de Puebla. This satellite has a mixed detector ultraviolet and infrared radiation and a detector of charged particles.
In this project we analyze the data collected by the satellite over a period corresponding to 3
... More
Presented by Ms. Liliana RIVERA
on
12/11/2010
at
16:00
Dynamical chiral symmetry breaking and confinement are two crucial features of
Quantum Chromodynamics. We study the confinement of the gluon propagator in
momentum space, where the dressed-gluon propagator, $D\{\mu,\nu} (p-q)$, is
width by an analytical dressing function given by
$G(q^2)/q^2 = c Sinc^2(\kappa q/2)$.
We will address these topics from the perspective of QCD’s Dyson-Schwinger
... More
Presented by Dr. Cliffor Benjamín COMPEÁN JASSO
on
12/11/2010
at
16:00
We obtain limits on the anomalous coupling $HZ\gamma$ through data
published by the L3 Collaboration on the process $e^+e^-\to
\tau^+\tau^- \gamma$. Our analysis leads to bounds on this
coupling of order $10^{-2}$, for an intermediate mass Higgs boson
$115 < M_H < 145$ $GeV$, two orders of magnitude above the
Standard Model prediction.
Presented by Dr. Alejandro GUTIERREZ-RODRIGUEZ
on
12/11/2010
at
16:00
The Higgs mediated flavor violating bottom-strange quarks transitions induced at the one-loop level by a nondiagonal $Hbs$ coupling are studied within the context of an effective Yukawa sector that comprises $SU_L(2)\times U_Y(1)$-invariant operators of up to dimension-six. The most recent experimental result on $B\to X_s\gamma$ with hard photons is employed to constraint the $Hbs$ vertex, which i
... More
Presented by Dr. Fernando RAMÍREZ ZAVALETA
on
12/11/2010
at
16:00
In the present work we bound the $Z^\prime tc$ coupling using the current experimental results for the $D^{0}-\overline{D^{0}}$ meson mixing system. We found that the strength associated to this coupling is less than $5.75\times 10^{-2}$. We also study the single top production for the $e^+e^-\to Z^\prime\to tc$ process at the $Z^\prime$ boson resonance and found that the number of events expected
... More
Presented by Dr. Jorge Isidro ARANDA SÁNCHEZ
on
12/11/2010
at
16:00
Small vibrations of a mechanical system consisting of three particles connected
by springs and placed in each vertex of the equilateral triangle is appropiate
for illustrating the gauge symmetry breaking and the vacuum stability
conditions of a minimal $S_3$-invariant extended Higgs potential. In the $S(3)$
extended Standard Model, there are three $SU(2)$ Higgs doublets that belong
to
... More
Presented by Dr. Rodriguez-Jauregui EZEQUIEL
on
12/11/2010
at
16:00
The possible existence of a hidden scale invariant sector interacting weakly with the SM fields has been suggested recently by Georgi. Although the study of such a sector involves a very complex mathematical framework, it turns out that its phenomenology can be studied through a low energy effective field theory parametrized by effective operators constructed out of the SM fields and nonphysical
... More
Presented by Mr. Agustin MOYOTL-ACUAHUITL
on
12/11/2010
at
16:00
We describe a general purpose data acquisition system for PMT signals. Hardware-wise it consists of a 4-channel ADC daughter board, an FPGA motherboard, a GPS receiver and an atmospheric pressure sensor. The four ADC channels simultaneously sample PMT input signals with a sampling rate of 100MS/s. We have evaluated the noise of our system obtaining less than -48.6dB. This DAQ system includes a
... More
Presented by Mr. Jose Ruben CONDE
on
12/11/2010
at
16:00
Una tecnología portable, barata y además eficaz para la captura de eventos muy energéticos, tales como brotes de rayos gama, Forbushy particulas cósmicas incidiendo en la atmosfera terrestre, se puede conseguir mediante el uso de una tarjeta programable FPGA, la cual servirá como controlador de un conjunto de canales TDC's que serán los portadores de la señal de disparo del detector HAWC.
Presented by Mr. Velazquez Rdz ENRIQUE
on
12/11/2010
at
16:00
We summarize our recent work on the application of the worldline
formalism to the calculation of the effective actions in Einstein-Maxwell
theory due to scalar and spinor loops. In the low energy limit and at
linear order in the curvature we obtain relatively compact two-parameter
integral representations for these effective actions. A particularly
simple Euler-Heisenberg type representation
... More
Presented by Mr. José Manuel DÁVILA DÁVILA
on
12/11/2010
at
16:00
We explore in detail the Higgs phenomenology that results in a model where right-handed neutrinos have a mass scale of the order of the electroweak scale. In this model all scales arise from spontaneous symmetry breaking, and this is achieved with a Higgs sector that includes an extra Higgs singlet in addition to the standard model Higgs doublet. The scalar spectrum includes two neutral CP-even st
... More
Presented by Sebastián ROSADO NAVARRO
on
12/11/2010
at
16:00
We study the production of neutral Higgs boson pairs at $\gamma
\gamma$ colliders through the $\gamma \gamma \to \phi_i\phi_j$
reaction within the context of the two-Higgs doublet model type III. Exact
analytical expressions are presented. The use of a nonlinear
$R_\xi$-gauge, which considerably simplifies the loop calculations
and renders compact analytical expressions, is stressed. The
$\
... More
Presented by Dr. Carlos HONORATO
on
12/11/2010
at
16:00
We will present and study an algebra describing a mixed paraparticle model, known in the bibliography as ``The Relative Parabose Set algebra (\textsc{Rpbs})''. Focusing in the special case of a single parabosonic and a single parafermionic degree of freedom $P_{BF}^{(1,1)}$, we will construct a class of Fock-like representations of this algebra, dependent on a positive parameter $p$ a kind of \emp
... More
Presented by Dr. Konstantinos KANAKOGLOU
on
12/11/2010
at
16:00
We work with gauge systems and using gauge invariant functions we study its quantum counterpart and we find if all these operators are hermitian or non hermitian. Our study is divided in two cases, when we choose clock or clocks that its Poisson bracket with the set of constraints is one or different to one. We show some transition amplitudes.
Presented by Dr. Vladimir CUESTA SÁNCHEZ, Dr. José David VERGARA OLIVER
on
12/11/2010
at
16:00
We consider a five-dimensional thick braneworld with a warped four-dimensional Poincaré invariant space-time in the framework of scalar matter non-minimally coupled to gravity plus a Gauss-Bonnet term in the bulk. Scalar field and higher curvature corrections to the background equations as well as the perturbed equations are shown. A relationship between 4-dimensional and 5-dimensional Planck ma
... More
Presented by Mr. Malagon DAGOBERTO
on
12/11/2010
at
16:00
The inert doublet model is an extension of the Standard Model of Elementary Particles that is defined by the only addition of a second higgs doublet without couplings to quarks or leptons. This minimal framework has been studied for many reasons. In particular, it has been proved that the new degrees of freedom contained in this new doublet can account for the dark matter of the Universe.
Presented by Ms. Lilian PRADO
on
12/11/2010
at
16:00
In MINERvA Experiment (FNAL e938), we study Λ° polarization in ν_μ N→ Λ°μ-X produced at low energies .
We present in this work the methodology to sudy Λ° polarization and some very preliminary results.
Presented by María Cristina ZARAZUA
on
12/11/2010
at
16:00
on
12/11/2010
at
16:00
En este trabajo estamos interesados en la producci\'on de bosones de Higgs cargados en
dispersiones muy inel\'asticas $e^− p$, en el contexto del modelo de dos dobletes de Higgs
tipo III (2HDM-III) a energ ́\'{'i}as de LEP/LHC. Para ello, primero calcularemos la secci\'oń
eficaz del subproceso $e^− + q → l + H^{\pm} + q$ , posteriormente haciendo uso del modelo de
partone
... More
Presented by Ms. Olga Guadalupe FÉLIX BELTRÁN, Saul SÁNCHEZ MORALES
on
12/11/2010
at
16:00
In this work we propose a geometrical distribution of the air Cherenkov detectors array, which will be part of the Cosmic High Altitude Radiation Monitor Observatory (CHARM) located at Pico de Orizaba volcano at 4300 m.a.s.l. The proposal is based on a library of montecarlo simulations with energies from 10^14 eV to 10^17 eV and photons, protons and iron nuclei as primary particles. The goal of t
... More
Presented by Ms. Alma Roberta MORALES REYES
on
12/11/2010
at
16:00
We review how second order equations for fields arise just by using projectors over Poincar ́e invariant subspaces. We focus in the case of fields describing massive spin 1/2
particles, we propose a particular second order Lagrangian and present preliminary results in its quantization.
Presented by Mr. René ANGELES MARTÍNEZ
on
12/11/2010
at
16:00
Presented by Mr. René ÁNGELES
n this work we computed the quark mass matrix and the quark mixing matrix of the
$S_3$ invariant extension of the Standard Model. In the $S_3$ invariant minimal standard model it is assumed that the quark, leptons and Higgs fields belong to the three-dimensional reducible representation of the permutation group $S_3$. We performed a perturbative diagonalization of the quark mass matrix and co
... More
Presented by Mr. Javier MONTAÑO-PERAZA
on
12/11/2010
at
16:00
The measurement of the event shape variables has been well-established in e+e- annihilation experiments. These has been used to extract the signal from the continuum background in different decays. Also the reported strangeness production (K and /\) present a deficit of strange particles on event with dijets.
We present a preliminary analysis of hadrons with V⁰ decay topology. We characterize a
... More
Presented by Mrs. Ivonne MALDONADO-CERVANTES
on
12/11/2010
at
16:00
We performed a study of solar activity through the Forbush effect, which relates large-scale solar dynamics with the detection of secondary cosmic rays at ground level. The detection of secondary cosmic rays is done by using a cylindrical water Cherenkov detector. The Cherenkov light produced by charged particles from the secondary cosmic radiation is detected by a single photomultiplier located
... More
Presented by Ms. Angelica BAHENA BLAS, Dr. Luis Manuel VILLASEÑOR CENDEJAS
on
12/11/2010
at
16:00
In this work we discuss the minimum fluence that gamma ray busts (GRBs) in the 1 GeV to 1 TeV energy range must have in order to be detected by the VAMOS array of the HAWC Observatory, under construction at the Sierra La Negra site in Mexico (4100 m a.s.l.), with a 5 sigma significance assuming a flux dN/dE ∝ E^-α and an spectral index of -2.7. It is well known that the number of secon
... More
Presented by Mario CASTILLO
on
12/11/2010
at
16:00
Knowing the exact energy of the second knee and which is the dominant composition is important for the astrophysics of high energies in the range of 10 ^ 17.5 eV to 10 ^ 19 eV, because the transition galactic to extragalactic components of cosmic rays flow could be happening in this range; that is why this work focuses on the analysis of data from the Pierre Auger Observatory extensions: Infill an
... More
Presented by Mr. Enrique VARELA C.
on
12/11/2010
at
16:00
We present a study for a Supersymmetric field theory with Lorentz-Violation terms in 5D. We
perform the analysis in the context of the Berger-Kostelecky model (BK), adding one compactified
dimension. This compactified dimension breaks explicitly the Lorentz invariance, however we intro-
duce terms that code this breaking as in Berger-Kostelecky work, and find non trivial restrictions
over boun
... More
Presented by Mr. Jose Didino GARCIA
on
12/11/2010
at
16:00
In the framework of the Little Higgs Model (LHM), we calculate the
decay width $\Gamma(Z_1 \to e^+e^-)$ with corrections of QED and
QCD. We analyze this with recent data from LEP and compute the
contribution of the model. We find that the deviations of the
decay width of reaction $Z_1 \to e^+e^-$ from its SM value are
relatively large in the parameter space preferred by the
electroweak preci
... More
Presented by Dr. Alejandro GUTIERREZ-RODRIGUEZ
on
12/11/2010
at
16:00
We are currently interested in models for neutrino masses with the addition of a fourth chiral generation in the Standard Model. We present here a review of why we consider it an interesting subject and some of the proposals already existing.
Presented by Ms. Carolina LUJAN PESCHARD
on
12/11/2010
at
16:00
We analized the double production and the triple self-coupling of
the standard model Higgs boson at future $\gamma \gamma$ collider
energies, with the reactions $\gamma\gamma \rightarrow f \bar f
HH$ $(f=b, t)$. We evaluated the total cross section for $f\bar
fHH$ and calculated the total number of events considering the
complete set of Feynman diagrams at tree-level. We varied the
triple co
... More
Presented by Dr. Alejandro GUTIERREZ-RODRIGUEZ
on
12/11/2010
at
16:00
