Event calendar file
3-8 June 2012
Hotel Fiesta Americana
Mexico/General timezone
- pascos2012@pegaso.fisica.unam.mx
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93
We present a non-minimal renormalizable SUSY $SU(5)$ model where the flavor sector is driven by the $Q_{6}$ flavor symmetry. In the Nearest Neighbor Interactions scenario and invoking R-parity conservation, we achieve to accommodate, according the current data, mixings in the CKM matrix. At the same time, in the leptonic side, the model predicts a strong inverted hierarchy spectrum among the neut
... More
Presented by Dr. Juan Carlos GOMEZ
on
8 Jun 2012
at
12:30
We observe that the dominant one loop contribution to the graviton propagator in the theory of N (N>>1) light scalar fields \phi_a (with masses smaller than M_{pl}/\sqrt{N}) minimally coupled to Einstein gravity is proportional to N while that of graviton-scalar-scalar interaction vertex is N independent. We use this to argue that the coefficient of the R\phi_a^2 term appearing at one loop level i
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Presented by Dr. Amjad ASHOORIOON
on
7 Jun 2012
at
17:40
Results are presented from a search for new physics in the final states containing either a photon or a jet accompanied by an imbalance in transverse energy using a data sample corresponding to an integrated luminosity of 4.7 fb−1 collected in pp collisions at √s = 7 TeV by the CMS experiment. The observed event count agrees with standard model expectations, establishing upper limits on the sp
... More
Presented by Ms. Tia MICELI
on
8 Jun 2012
at
10:55
Session:
BSM
A modification of the accepted relativistic energy-momentum relation is suggested.The new relation allows massive particles to have a maximum velocity c(m) greater than the velocity of light c. The effect of the modification suggested here would be most apparent for objects with masses nearly equal to the Planck mass.
Presented by Prof. Gupta VIRENDRA
on
4 Jun 2012
at
16:40
We propose a new process of mu(-) e(-) -> e(-) e(-) in a muonic atom for a quest of charged lepton flavor violation. The Coulomb attraction from the nucleus in a heavy muonic atom leads to significant enhancement in its rate, compared to mu(+) e(-) -> e(+) e(-). The upper limit of the branching ratio is estimated to be of the orders of O[10^(-17)-10^(-18)] for the photonic and the four Fermi inter
... More
Presented by Prof. Joe SATO
on
7 Jun 2012
at
16:20
The neutrino mixing mass matrix contains three mixing angles, one Dirac and two Majorana CP violating phases (in case to be Majorana particles) and can be parametrized in different equivalent ways. One particular ansatz is the Tribimaximal Mixing Matrix which despite the recent experimental confirmation of a non zero value for the $\theta_{13}$ mixing angle, can be used as a good first aproximati
... More
Presented by Dr. Alma D. ROJAS
on
5 Jun 2012
at
17:35
A local and renormalizable version of a modified PQCD introduced in previous works is presented.
The construction indicates that it could be equivalent to massless QCD. The case in which only
quark condensate effects are retained is discussed in more detail. Then, the appearing auxiliary
fermion fields can be integrated, leading to a theory with the action of massless QCD, to which
one local
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Presented by Dr. Alejandro CABO
on
8 Jun 2012
at
10:35
Aspects of physics beyond the Standard Model at the LHC
Presented by Prof. Alberto CASAS
on
5 Jun 2012
at
10:30
It has been shown that string moduli are not completely stabilized in traditional weakly coupled free fermionic heterotic string flat direction phenomenology. This necessitates systematic investigation of VEV moduli space in order to compare with reality. We summarize the efforts at Baylor University to enhance the efficiency and depth of the current systematic free fermionic heterotic string in
... More
Presented by Jared GREENWALD
on
5 Jun 2012
at
15:30
Session:
MSSM
We would like to present our research about the Q-ball decay into the axino dark matter in the gauge-mediated supersymmetry breaking.
In our scenario, Q balls, non-topological soliton, decay mainly into nucleons and partially into axinos to account for the baryon asymmetry and the dark matter of the universe simultaneously. The Q ball decays well before the big bang nucleosynthesis so that it i
... More
Presented by Ms. Etsuko KAWAKAMI
on
4 Jun 2012
at
16:40
It is remarkable that gauging the superfields under U(1)_{B−L} implies R−Parity conservation thus, the minimal B−L extension of the MSSM contains naturally DM candidate. We analyze the supersymmetric extension SU(3)_c x SU(2)_L x U(1)_Y x U(1)_{B−L} in the DM context. In particular, we study the possibility to generate neutrino masses due to a double see-saw mechanism, we compute also the
... More
Presented by Roger José HERNÁNDEZ PINTO
on
4 Jun 2012
at
18:20
Baryon and Lepton Numbers: Life in the Desert
Presented by Dr. Pavel FILEVIEZ PÉREZ
on
6 Jun 2012
at
11:45
We propose helium-4 spallation processes induced by long-lived
stau in supersymmetric standard models, and investigate an
impact of the processes on light elements abundances.
We show that, as long as the phase space of helium-4 spallation
processes is open, they are more important than stau-catalyzed
fusion and hence constrain the stau property.
Presented by Dr. Masato YAMANAKA
on
5 Jun 2012
at
17:15
This work is devoted to the general discussion of the Cabibbo-Kobayashi-Maskawa (CKM) matrix. First we propose a general method of the recursive construction of the CKM matrix for any number of families. This allows to set up a parametrization with desired properties. As an application we generalize the Wolfenstein parametrization to the case of 4 families and obtain restrictions on the CKM suppre
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Presented by Mr. Hilario PEREZ
on
8 Jun 2012
at
11:50
A class of discrete flavor-symmetry-based models predicts constrained neutrino mass matrix schemes that lead to specific neutrino mass sum-rules (MSR). We show how these theories may constrain the absolute scale of neutrino mass, leading in most of the cases to a lower bound on the neutrinoless double beta decay effective amplitude.
Presented by Mr. LUIS DORAME
on
5 Jun 2012
at
16:30
If the Universe reionizes in patches, the observed optical depth \tau varies with the line of sight. Scattering of CMB photons by free electrons results in a damping of the CMB power spectra by a factor exp(-2\tau). When the optical depth is anisotropic, the damping has an angular dependence. We show that this angular dependence adds power to the CMB TT spectrum on small scales. We use data from
... More
Presented by Dr. Aravind NATARAJAN
on
5 Jun 2012
at
17:35
The current paradigm of structure formation predicts the existence of sub-galactic structures which existence has not been confirmed nor excluded by astrophysical observations. Some of these substructures could be disrupted by tidal interactions with other galaxy components, leading to streams like structures. Whether subhalos or streams, the presence of these dark matter structures in the solar n
... More
Presented by Ms. Alma GONZALEZ
on
5 Jun 2012
at
15:50
We examine different constraints on dark matter stability from cosmic-ray and gamma-ray observations and their complementarity through higher-order effects. Two and three-body decays of dark matter particles into charged leptons and quarks generically induce decays into monochromatic photons at the quantum level. We present a general model-independent analysis of hadronic constraints in the mass-l
... More
Presented by Dr. David TRAN
on
5 Jun 2012
at
17:35
There are self-accelerating solutions in massive gravity which can explain the present acceleration of the Universe in terms of the graviton mass. On these backgrounds, an enhanced symmetry removes the scalar and vector perturbations, leading to tensor modes only, which in principle, can be the only way to distinguish these massive gravity solutions from General Relativity with a cosmological cons
... More
Presented by Dr. Gustavo NIZ
on
4 Jun 2012
at
18:00
Some neutrino properties, such as the absolute mass, can be probed very precisely using cosmological data. In the talk I will review how neutrinos influence the formation of structure as well current bounds on neutrino properties. I will then discuss future structure formation probes, mainly the recently approved ESA mission EUCLID and its potential for probing neutrino physics.
Presented by Prof. Hannestad STEEN
on
6 Jun 2012
at
10:30
We show that a very light scalar field experiencing quantum fluctuations during primordial inflation can explain the current cosmic acceleration. Provided its mass does not exceed the Hubble parameter today, this field has been frozen during the cosmological ages to start dominating the universe only recently. Assuming this scenario to be correct, and using supernovae data, the model predicts the
... More
Presented by Dr. Christophe RINGEVAL
on
7 Jun 2012
at
17:20
We present a detailed analysis of the radio synchrotron emission induced by WIMP dark matter annihilations and decays in galactic and extragalactic halos.
We show that low frequency data are particularly suitable to search for the galactic emission and current data can already constrain particle dark matter with “thermal” annihilation cross-sections and masses <=10 GeV.
We then consider the
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Presented by Dr. Marco TAOSO
on
8 Jun 2012
at
12:10
dark matter detection: an overview of direct detection,
Presented by Prof. Paolo GONDOLO
on
8 Jun 2012
at
09:45
The curvaton scenario provides a simple explanation for the generation of the cosmological perturbations, however most works have focused on cases with rather trivial curvaton energy potentials, e.g. quadratic ones. In this talk I will present the rich phenomenology of curvatons by showing that non-quadratic curvatons exhibit new behaviors, leading to interesting signals in the resulting density p
... More
Presented by Dr. Takeshi KOBAYASHI
on
4 Jun 2012
at
17:40
The current LHC results lead to an increasing tension between the expectations for new particles at the weak scale and observations.
However, new states remain viable even when they are charged or colored if they are very close in mass to the dark matter particle since such a scenario is inherently difficult to constrain at colliders.
Moreover, a dark matter particle embedded in a nearly degene
... More
Presented by Mr. Stefan VOGL
on
8 Jun 2012
at
12:50
We present a unified treatment on masses and mixings, with different Higgs sectors, for both quarks and leptons. We derive analytical expressions for fermion mixing angles in terms of mass ratios. The discussion will begin by presenting a general framework of an S3-invariant extension of the Standard Model, then it will be followed by explaining particular realizations of the model. We will mentio
... More
Presented by Mr. Ulises Jesús SALDAÑA SALAZAR
on
7 Jun 2012
at
17:20
We complete formulae for the elastic cross section of general vector dark matter with nucleon in the direct detection at the leading order of the strong coupling constant, assuming that the dark matter is composed of vector particles. As an application of our formulae, the direct detection of the first Kaluza-Klein photon in the minimal universal extra dimension model is discussed. It is found tha
... More
Presented by Mr. Natsumi NAGATA
on
4 Jun 2012
at
17:40
Intensive production of top anti top pairs at hadronic colliders enable
measurments of cross-section, forward-backward asymmetry, charge asymmetry, invariant mass distribution, top -anti-top spin-spin correlations. Due to the forward-backward asymmetry deviation of the Standard model predictions
many models of new physics were invented to explain this puzzle.
We consider impact of the axiglu
... More
Presented by Dr. Blazenka MELIC
on
4 Jun 2012
at
17:40
The existence of non-baryonic Dark Matter (DM) is well established by cosmological and astrophysical probes. However, despite the great experimental ef ort over many years, its nature still remains elusive. Elucidating the long-standing puzzle of the nature of dark matter constitutes one of the most important challenges of modern cosmology and particle physics. I will present a model where the sta
... More
Presented by Dr. Eduardo PEINADO
on
4 Jun 2012
at
17:20
Recent developments in non-perturbative QCD for hadron physics have accumulated very strong evidence that the quark chiral condensate, an indispensible element of modern descriptions, has a very different interpretation from the traditional one of being a vacuum property. In contrast to the view long fostered by the success of the QCD sum rule phenomenology for hadrons , we present a number of a
... More
Presented by Prof. Peter TANDY
on
7 Jun 2012
at
15:30
We discuss supersymmetric versions of the Nambu--Jona-Lasinio model focusing on interesting new results we have from direct supergraph derivation of the gap equation.
Presented by Prof. Otto KONG
on
7 Jun 2012
at
16:20
Effective SUSY
Presented by Prof. Jihn E. KIM
on
4 Jun 2012
at
15:30
High precision numerical simulations of the Lambda Cold Dark Matter (LCDM) model seem to coincide very well with astronomical observations of galaxies and clusters of galaxies. These dark matter simulations are more close to the Einasto profile in the centre of the galaxies and follow the Navarro-Frenk-White (NFW) one outside the centre. The coincidence is more accurate when the numerical simulat
... More
Presented by Prof. Tonatiuh MATOS
on
5 Jun 2012
at
16:10
Electroweak precision tests of the Standard Model of the fundamental interactions are reviewed ranging from the lowest to the highest energy experiments. Results from global fits are presented with particular emphasis on the extraction of fundamental parameters such as the Fermi constant, the strong coupling constant, the electroweak mixing angle, and the mass of the Higgs boson. Constraints on ph
... More
Presented by Prof. Jens ERLER
on
7 Jun 2012
at
09:00
Fragmentation functions (FFs) are non perturbative objects which has to be obtained from the data. These functions are relevant in any process in which a hadron is observed in the final state. We present the FFs extracted using global fits and taking into account different sets of experimental data: e+e- Single Inclusive Annihilation, Semi Inclusive Deep Inelastic Scattering and Hadron-Hadron Coll
... More
Presented by Roger José HERNÁNDEZ PINTO
on
8 Jun 2012
at
10:55
Flavor and Funparticles From F-theory
Presented by Prof. Jonathan HECKMAN
on
5 Jun 2012
at
12:30
Can we learn about New Physics with astronomical and astro-particle data? Understanding how this is possible is key to unraveling one of the most pressing mysteries at the interface of cosmology and particle physics: the fundamental nature of dark matter. I will discuss some of the recent puzzling findings in cosmic-ray electron-positron data and in gamma-ray observations that might be related to
... More
Presented by Prof. Stefano PROFUMO
on
6 Jun 2012
at
09:45
Gamma-ray bursts have been detected at photon energies up to tens of
GeV, and there are reasons to believe that they emit at least up to TeV energies, via leptonic or/and hadronic mechanisms. I review
some recent developments in the GeV photon phenomenology in the light
of Fermi observations, as well as recent related theoretical work.
I discuss then the possibility of accelerating cosmic rays
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Presented by Prof. Peter MESZAROS
on
4 Jun 2012
at
09:45
A general analysis of the consequences on the neutrinos masses using a general four-zero texture mass matrix is shown. We present a general and different approach to the problem that leads to several way of parametrization of the CKM and PMNS mixing matrices. Once we demonstrate the usefulness of our parametrizations in the sector quarks taking into account the last experimental results, we provid
... More
Presented by Dr. Lao Tsé LÓPEZ-LOZANO
on
7 Jun 2012
at
18:00
We study Higgs inflation in the context of generalized G-inflation, i.e., the most general single-field inflation model with second-order
field equations. The four variants of Higgs inflation proposed so far in the literature can be accommodated at one time in our framework. We also propose yet another class of Higgs inflation, the running Einstein inflation model, that can naturally arise from t
... More
Presented by Masahide YAMAGUCHI
on
7 Jun 2012
at
18:00
Session:
Plenaries Monday
We will review the status of gravitino Dark Matter
and other very weakly interacting particles in
the light of LHC supersymmetry searches.
Presented by Prof. Laura COVI
on
4 Jun 2012
at
11:45
In order to significantly raise the mass of the SUSY Higgs, we consider a radiative correction to it by heavy (\sim 1 TeV) hidden sector fields, which communicate with the Higgs through relatively heavy "messengers" (300-500 GeV). The messenger fields (S, \bar{S}) are coupled to the Higgs ("y_HSH_uH_d," y_H\lesssim 0.7) and also to hidden sector fields with a Yukawa coupling of order unity. The hi
... More
Presented by Bumseok KYAE
on
8 Jun 2012
at
10:35
Finite Unified Theories (FUTs) are N = 1 supersymmetric Grand Unified Theories (GUTs), which can be made finite to all-loops in perturbation theorye, and thus have a remarkable predictive power due to the required reduction of couplings. Based on this theoretical framework phenomenologically consistent FUTs have been constructed. Here we review two FUT models based on the SU(5) gauge group, which
... More
Presented by Mr. Federico CÁZAREZ
on
8 Jun 2012
at
12:50
We construct self/anti-self charge conjugate (Majorana-like) states for higher spins within the quantum field theory. The problems of the basis rotations and that of the selection of phases in the Dirac-like and Majorana-like field operators are considered. It seems that in many areas of particle/neutrino physics and astrophysics scalar fields are required. We show that the non-linear realization
... More
Presented by Prof. Valeriy DVOEGLAZOV
on
5 Jun 2012
at
17:55
Hunting for de Sitter vacua in the String Landscape
Presented by Prof. Gary SHIU
on
6 Jun 2012
at
09:00
In this work we shown the brantching ratios of the main neutral Higgs bosons decays in the context to the THDM type III (THDM-III), taking into account the implications of Yukawa textures.In particular, the flavor violating decays could be restricted at low energies by the specific form of 4-zero textures. The analytic and numerical analysis in the allowed parameter space are realized. Several def
... More
Presented by Mr. Héctor BELLO MARTÍNEZ
on
8 Jun 2012
at
12:10
The S3 model is an extension of the SM in which has been imposed a S3 flavor symmetry. In order to give masses to the particles and keep the flavour symmetry unbroken two additional Higgs doubletes are added. The model has three right handed neutrinos which help implement a seesaw mechanism to give light masses to the left handed ones. On this model we calculate the leptonic as well as the baryon
... More
Presented by Mr. Arturo ALVAREZ CRUZ
on
7 Jun 2012
at
18:00
We analyse the possibility to get light long-lived charginos within the
framework of the MSSM with gravity mediated SUSY breaking. We find
out that this possibility can be realized in the so-called focus-point
region of parameter space. The mass degeneracy of higgsino-like chargino and two
higgsino-like neutralinos is the necessary condition for a long lifetime.
It requires the fine-tuning of
... More
Presented by Dr. Manuel Gerardo PAUCAR ACOSTA
on
4 Jun 2012
at
16:20
Several proposals for studying neutrinos with large detectors are currently under discussion. We suggest that they could provide a precise measurement of the electroweak mixing angle as well as a probe for new physics, such as non-standard neutrino interactions (NSI), and the electroweak gauge structure. We illustrate this explicitly for the case of the LENA proposal, either with an artificial rad
... More
Presented by Ms. Estela A. GARCES
on
5 Jun 2012
at
17:15
Session:
Higgs
The Minimal Supersymmetric Standard Model is builded on the assumption of universality of scalar masses. In this work, we consider that
the trilinear SUSY Soft-terms have a hierarchical structure of flavor mixing within generations, leading to a non-degeneration on sfermion masses. We analyze the consequences on the MSSM parameter space of this
sfermion loop contributions . We work under the con
... More
Presented by Dr. Melina GOMEZ-BOCK
on
8 Jun 2012
at
11:50
I will review the status of neutrino mass and mixing parameters, as well as their theoretical modeling and implications
Presented by Prof. José VALLE
on
5 Jun 2012
at
09:00
Neutrinos and dark matter
Presented by Prof. Manfred LINDNER
on
4 Jun 2012
at
09:00
I will review the most recent measurements of the Cosmic Microwave Backround anisotropies and their implications
on neutrino physics, dark energy, dark matter and inflation.
Presented by Prof. Alessandro MELCHIORRI
on
8 Jun 2012
at
15:30
Session:
Cosmology
We present neutrino mass bounds using 900,000 luminous galaxies with photometric redshifts measured from Sloan Digital Sky Survey III Data Release Eight (SDSS DR8). The galaxies have photometric redshifts between z = 0.45 and z = 0.65, and cover 10,000 square degrees and thus probe a volume of 3h^(−3)Gpc^3, enabling tight constraints to be derived on the amount of dark matter in the form of mass
... More
Presented by Ms. Elena GIUSARMA
on
4 Jun 2012
at
16:40
New physics search with flavour
Presented by Prof. Tobias HURTH
on
8 Jun 2012
at
09:00
We investigate several new event types that can be searched for in dark matter direct detection experiments. In the first part of the talk, we discuss the scattering of solar neutrinos on electrons and atomic nuclei. The rates of these processes are small in the Standard Model, but can be enhanced by several orders of magnitude in models with new light gauge bosons ("dark photons") and with steril
... More
Presented by Joachim KOPP
on
8 Jun 2012
at
12:30
Neutrino experiments offer an an increasing evidence for a non zero
neutrino mass and there is a strong effort to build models containing
the observed the neutrino mass pattern. Most of this models implies
nonstandard interactions that can be parametrized in terms of
effective four-fermion operators in the low-energy limit. In this talk
I plan to show the current status of the constraints to
... More
Presented by Dr. Omar MIRANDA
on
5 Jun 2012
at
16:10
Session:
BSM
We give a solution to the long-standing problem of the supersymmetrization of non-Abelian tensors. Our system has three multiplets: (i) The usual non-Abelian vector multiplet (AμI , λI ), (ii) A non-Abelian tensor multiplet (Bμν I , χI , φI ), and (iii) A compensator vector multiplet (CμI , ρI ). All of these multiplets are in the adjoint representation of a non-Abelian gauge group G. The
... More
Presented by Prof. Subhash RAJPOOT
on
4 Jun 2012
at
16:20
On Understanding Neutrino Masses and Lepton Mixing
Presented by Prof. André DE GOUVÊA
on
5 Jun 2012
at
09:45
Although superstring theory has had diverse applications
over the last 40 years, some fundamental aspects of the theory are
still mysterious.
In this talk, I will discuss some recent advances including the
computation of multiloop scattering amplitudes and the quantization of
Ramond-Ramond backgrounds such as AdS_5xS⁵.
Presented by Prof. Nathan BERKOVITS
on
7 Jun 2012
at
11:45
We analyze the dynamical system defined by a universe filled with a barotropic fluid plus a scalar field with modified kinetic term of the form L = F(X) − V ( phi). After a suitable choice of variables that allows us to study the phase space of the system we obtain the critical points and their stability. We present a particular model that possesses a large set of initial conditions consisten
... More
Presented by Dr. Jorge CERVANTES-COTA
on
4 Jun 2012
at
17:20
Particle Physics and Non-perturbative Effects in Type II and F-theory
Presented by Prof. Mirjam CVETIC
on
5 Jun 2012
at
11:45
In this talk, we explore the possibility of additional Abelian symmetries in semi-realisitc heterotic orbifold models and their impact on phenomenology. We show how a mixing between the hypercharge and a hidden photon could lead to "dark forces". We also introduce the "Orbifolder", a tool to compute the properties of the effective theories arising from heterotic orbifolds.
Presented by Dr. Saul RAMOS-SANCHEZ
on
7 Jun 2012
at
16:40
Leptogenesis offers a very attractive explanation for the origin of the baryon asymmetry of the universe. Such scenarios based on leptonic CP-violation can be realized already within minimalistic seesaw extensions of the standard model. Apart from model building issues the answer to the question of whether a given model can explain the observed amount of baryon number density depends also on the d
... More
Presented by Dr. Andreas HOHENEGGER
on
7 Jun 2012
at
17:20
We consider supersymmetric models in which the right‐handed
sneutrino is a viable WIMP dark matter candidate. These are
either simple extensions of the Minimal Supersymmetric Standard Model or models with the addition of an extra U(1) group. All of them can explain small neutrino masses, through either the Inverse
or the Linear Seesaw mechanism. We investigate the properties
of the dark matt
... More
Presented by Ms. Valentina DE ROMERI
on
4 Jun 2012
at
18:00
High precision measurement of the form factors of the semileptonic
decays K+- -> pi0 l+- nu (Kl3)
============================================
Semileptonic kaon decays offer the most precise determination of the
CKM matrix element |Vus|. The experimental precision is however
limited by the knowledge of the form factors of this decay, since
these enter both the phase space integral and the de
... More
Presented by Prof. Giuseppina ANZIVINO
on
4 Jun 2012
at
17:20
We discuss the range of validity of the basic two Higgs doublet model
by numerically solving the renormalization group equations for the
quartic couplings and masses. We consider parameter-values that satisfy
the vaccuum stability and triviality principles, some of them used in the literature.
Presented by Mr. Damasio MORALES CRUZ
on
8 Jun 2012
at
12:10
The Pierre Auger Observatory, located in Argentina, detects cosmic
rays with energies from 100 PeV to above 100 EeV. By combining a 3000
km^2 surface detector array (SD) with 24 overlooking fluorescence
telescopes (FD), the Auger Observatory can observe both the
longitudinal development and lateral spread of cosmic ray air showers
at ground level.
The combination of the two techniques is a
... More
Presented by Dr. Jose Augusto CHINELLATO
on
5 Jun 2012
at
17:15
We make a classification of SUSY-Yang-Mills theories in four dimensions, that are finite at least at two loops an also are invariant under the Bi-Dihedrial group of order six (Q6) (at GUT scale). A subset of these theories remains invariant under Q6 after GUT SU5 symmetry breaking. We make comments on their importance in the Flavor Sector in the low energy limit.
Presented by Mr. Enrique JIMENEZ-RAMOS
on
7 Jun 2012
at
16:40
SUGRA Grand Unification, LHC and Dark Matter
Presented by Prof. Pran NATH
on
7 Jun 2012
at
10:30
Session:
Plenaries Monday
I shall discuss some Non-universal Gaugino mass models of Supergravisty
giving cosmologically compatible Dark Matter relic density. The predictions of these models for LHC and the various Dark Matter detection experiments will be briefly discussed.
Presented by Prof. D. P. ROY
on
4 Jun 2012
at
12:30
Search for Higgs and Supersymmetry
Presented by Prof. Dirk ZERWAS
on
7 Jun 2012
at
09:45
Lepton flavor violation processes are ideal probes for new physics due to the suppression of Standard Model backgrounds. The $\mu^+\rightarrow e^+\gamma$ reaction in particular has been used extensively to search for new physics by many experiments in the past. The MEG Collaboration is currently operating the world's most sensitive charged lepton flavor violation experiment at the Paul Scherrer In
... More
Presented by Dr. Gordon LIM
on
7 Jun 2012
at
16:40
Searches for the pair-production of leptoquarks are presented with the full 2011 pp collision data collected with the CMS detector at the LHC. Search channels include the first, second, and third generation in decay modes with either two leptons or a lepton and missing energy, and two jets. The results exhibit good understanding of the detector and modeling of the standard model backgrounds. With
... More
Presented by Mr. Darin BAUMGARTEL
on
4 Jun 2012
at
18:00
Searching for axions and other WISPs from string compactifications
Presented by Prof. Andreas RINGWALD
on
7 Jun 2012
at
12:30
We propose a new type of Dark Matter, the BDM, derived from particle gauge group theory, where the particles of BDM acaquier a large non-perturbative mass at a transtion scale Ec. The BDM particles are HDM above EC and CDM below this scale. BDM solves two of the main probelmosof CDM, namely the large number of substructure predicted by CDM and the core density porfile in the inner region of DM d
... More
Presented by Dr. Axel DE LA MACORRA
on
5 Jun 2012
at
15:30
Presented are the results of the initial stages of systematic investigations of NAHE (Nanopoulos, Antoniadis, Hagelin, Ellis)-based models (see arXiv:1111.1263 [hep-ph]) and of NAHE variation-based models (see arXiv:1111.1917 [hep-ph]). For both model classes, the statistics related to the number of U(1)'s, gauge group factors, non-Abelian singlets, and ST SUSYs, as well as the gauge groups, are d
... More
Presented by Mr. Yanbin DENG
on
5 Jun 2012
at
16:10
Lorentz violation is a predicted signal from Planck scale physics.
Since neutrino oscillation experiments are natural interferometers,
they may be sensitive to small space-time effect,
such as Lorentz violation through their sidereal time dependence.
The sensitivity is comparable to precision optical measurements (10E-19 GeV).
Thus, neutrino oscillations may be the first place
where we
... More
Presented by Dr. Teppei KATORI
on
5 Jun 2012
at
15:30
I will present recent results which try to combine moduli
stabilisation and chiral model building within a fully consistent type
IIB string compactification described in terms of toric geometry. I will
also briefly discuss some applications to axion physics and cosmology, and a new way
to get dS vacuua in a manifestly supersymmetric effective action.
Presented by Michele CICOLI
on
7 Jun 2012
at
16:20
The Dark Energy Survey Collaboration will soon begin a 5000 sq. deg. imaging survey of the southern galactic cap using a new 3 sq. deg., 520 Megapixel CCD camera, the Dark Energy Camera (DECam), with 5 filters (g,r,i,z and Y) mounted on the Blanco 4-meter telescope at the Cerro-Tololo Inter-American Observatory. Construction of DECam is complete, and installation and commissioning on the telesco
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Presented by Dr. Brian NORD
on
8 Jun 2012
at
11:50
Session:
Plenaries Monday
Cosmic rays have been observed up to several 10^20 eV through the showers
of secondary particles they induce in the atmosphere. Their existence poses
formidable challenges and exciting prospects at the same time: Their origin
and sources have not been identified yet, but they already allow to test
physics at center of mass energies unattained in the laboratory, albeit in
a rather indirect way
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Presented by Prof. Guenter SIGL
on
4 Jun 2012
at
10:30
The Large Underground Xenon (LUX) experiment consists of a two-phase xenon time projection chamber, which is being deployed at a depth of 4850 feet in the Homestake mine in Lead, South Dakota. When LUX begins operation in Fall 2012 it will be the world’s most sensitive dark matter detector, with a fiducial target mass of 100 kg. Results from a surface lab commissioning and calibration run of L
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Presented by Mani TRIPATHI
on
8 Jun 2012
at
10:35
The MAJORANA collaboration will search for the neutrinoless double-beta decay of 76Ge. The observation of this rare decay would indicate the neutrino is its own anti-particle, demonstrate that lepton number is not conserved, and provide information on the absolute mass scale of the neutrino. The MAJORANA collaboration is constructing the DEMONSTRATOR, an array of high purity germanium detectors.
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Presented by Padraic FINNERTY
on
5 Jun 2012
at
15:50
We discuss the neutrino masses and mixings as the realization of an S(3) flavour permutational symmetry. In this model the S(3) symmetry is left unbroken and the concept of flavour is extended to the Higgs sector by introducing in the theory three Higgs fields which are SU(2) doublets. The mass matrices of the neutrinos and charged leptons are reparametrized in terms of their eigenvalues, and
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Presented by Mr. Felix GONZALEZ CANALES, Prof. Alfonso MONDRAGON BALLESTEROS
on
7 Jun 2012
at
17:40
It has been shown that the string landscape consists of roughly $10^{500}$ string vacua. While the construction of all of these models is currently made infeasible by technological limits, systematic construction schemes can be employed to explore regions of the landscape. These surveys can provide insight into the theory that purely analytical analysis cannot. We discuss one such systematic surve
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Presented by Douglas MOORE
on
5 Jun 2012
at
15:50
We explore two scenarios were the axion-photon interaction could produce observable signals of the dark matter. In the first scenario, dark compact objects made of axions, named axion stars, could collide with neutron stars. The whole energy of the axion star can be dissipated in the magnetized conducting medium of the neutron star generating gamma rays. If such gamma rays are observed, this could
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Presented by Dr. Juan BARRANCO
on
5 Jun 2012
at
17:55
Session:
Cosmology
In recent years, both reactor neutrino experiments (Gallex, Sage,...)and short baseline oscillation experiments (MiniBooNE, LSND) have shown anomalies, which might be explained by a sterile neutrino with a mass difference squared of roughly 1eV^2.
Cosmology also seems to favour additional radiation, often dubbed Dark Radiation, and this radiation could also be explained by a sterile neutrino. H
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Presented by Mr. Thomas TRAM
on
4 Jun 2012
at
16:20
We present an analysis that shows that for renormalizable flavor models
based on the cyclic group of order $N$, if there are three SU(2) doublet
Higgses, the smallest $N$ that can be used to reproduce the
Nearest-Neighbor-Interaction texture for the quark mass matrices is N=5.
Presented by Mr. Cesar BONILLA
on
8 Jun 2012
at
12:30
We study the toroidal dipole moment of the lightest neutralino in the constrained Minimal Supersymmetric Standard Model. The toroidal dipole moment is the only electromagnetic property of the neutralino. Since the neutralino is the LSP in many versions of the MSSM and therefore a candidate for dark matter, its characterization through its electromagnetic properties is important both for particle p
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Presented by Mr. Esteban Alejandro REYES PÉREZ MONTAÑEZ
on
4 Jun 2012
at
18:20
The nature of dark matter (DM) particles and the mechanism that provides their measured relic
abundance are currently unknown. Likewise, the nature of the inflaton is unknown as well. In this talk we investigate the triplet seesaw model in an unified picture. At high energy scale, we consider Higgs inflation driven by an admixture of standard model and triplet Higgs fields, both coupled non-mini
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Presented by Dr. Chiara ARINA
on
7 Jun 2012
at
17:40
Particle physics models with a large number of fields coupled to general relativity can suffer from a breakdown of perturbative unitarity below the effective Planck scale. This brings into question the validity of their effective field theory descriptions and can indicate the onset of new physics. This talk will discuss these issues and their consequences in the context of large extra dimensions,
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Presented by Mr. Michael ATKINS
on
7 Jun 2012
at
18:20
Yukawa unification or MSSM at large tan(beta)
Presented by Prof. Stuart RABY
on
8 Jun 2012
at
16:15
I wil show some concepts an ideas about beyond standard model (SM), couplings SM-like and the new gauge boson: Z'. Thinking about a bottom up energy scheme, like evolution of the colliders, we can answer ¿ Could the Z' be a Higgs source? ¿What is the branchig ratio?.
I will finish answering the last questions.
Presented by Mr. Javier-Andres ORDUZ-DUCUARA
on
8 Jun 2012
at
10:55
