Conveners
Parallel Session 6: C - Alternatives
- Roni Harnik (FNAL)
Parallel Session 6: B - SUSY pheno
- Stefania Gori (University of Chicago)
Parallel Session 6: D - LHC SUSY
- Xerxes Tata (University of Hawaii)
Parallel Session 6: A - Fourth generation
- Robin Erbacher ()
Parallel Session 6: H - Dark matter
- Tim Tait (UC Irvine)
Parallel Session 6: E - Flavor exp and pheno
- Wolfgang Altmannshofer (Fermilab)
Dr
Jamie Tattersall
(Bonn University)
30/08/2011, 14:30
If SUSY is discovered at the LHC, the task will immediately turn to
trying to determine the model of SUSY breaking. We take a Mixed
Modulus-Anomaly Mediated SUSY Breaking (MMAMSB) model with very similar LHC phenomenology to the more conventionally studied CMSSM. We then study whether the models can be distinguished and measured. If we only fit to the various mass edges and mass end-points...
Roger Hernandez-Pinto
(CINVESTAV and Buenos Aires University)
30/08/2011, 14:30
SUSY: models
We analyze the inclusion of the neutrinos in the MSSM by gauging them under U(1)_{B-L}. We then solve the RGE in order to find the sparticle mass spectrum and the breaking scale of U(1)_{B-L}. We also study the possibility to generate neutrino masses due to a double see-saw mechanism, which is naturally implemented on this groud, and perform an analysis to determine the DM relic density...
Dr
Daniel Feldman
(University of Michigan Ann Arbor, MCTP)
30/08/2011, 14:30
Mr
Gustavo Burdman
(University of Sao Paulo/Fermilab)
30/08/2011, 14:30
Seema Sharma
(Fermilab)
30/08/2011, 14:50
Mr
Reinard Primulando
(The College of William and Mary)
30/08/2011, 14:50
Dark matter: models
We construct an explicit, TeV-scale model of decaying dark matter in which the approximate stability of the dark matter candidate is a consequence of a global symmetry that is broken only by instanton-induced operators generated by a non-Abelian dark gauge group. The dominant dark matter decay channels are to standard model leptons. Annihilation of the dark matter to standard model states...
Ms
Conny Beskidt
(IEKP, KIT)
30/08/2011, 15:00
SUSY: models
We study the strong correlations between the parameters of the popular
Constrained Minimal Supersymmetric Model (CMSSM) with four independent
parameters. Knowing these correlations allows to develop a multi-step
fitting procedure, which efficiently determines the allowed parameter
space by simply minimizing the chi^2 in multiple steps, i.e. first the
parameters with the highest...
Dr
Thomas Flacke
(University of Wuerzburg)
30/08/2011, 15:00
Models with Universal Extra Dimensions provide one of the simplest extra dimensional extensions of the Standard Model which incorporates a dark matter candidate and can provide a rich LHC phenomenology which strongly resembles SUSY signals. The minimal UED Kaluza Klein Spectrum can be modified in two ways: by operators which are localized at the orbifold fixed points (non-minimal UED) or by...
Mr
Randel Cotta Cotta
(Stanford/SLAC)
30/08/2011, 15:00
We describe the novel higgs sector phenomenology of supersymmetric models that include a 4-th generation of chiral fermions. In particular we work in a 4-generation version of the MSSM and find that the LHC signatures expected from the higgs sector of these models are in stark contrast with those expected from the usual 3-generation MSSM.
Mr
Kazuya Yonekura
(University of Tokyo, IPMU)
30/08/2011, 15:10
SUSY: models
A model is proposed which dynamically breaks SUSY,
mediates the SUSY breaking via gauge mediation,
and also contains a dark matter candidate.
There is only one mass parameter in the model, that is, the messenger mass.
Dr
Johannes Heinonen
(University of Chicago)
30/08/2011, 15:10
We show, that it is possible to get constructive interference between SM and SUSY contributions in the B → τν amplitude by choosing a negative and large μ. We demonstrate how the SUSY spectrum will have to be chosen and that is is possible to fulfill all other experimental constraints especially the ones coming b → sγ and gμ.
Takashi Yamanaka
30/08/2011, 15:10
Dr
Philippe Mermod
(Oxford University)
30/08/2011, 15:20
A number of searches for massive long-lived particles have been performed with early LHC data. While existing ATLAS and CMS limits in R-hadron production cross sections have been interpreted as metastable squark and gluino mass limits, in the present work they are also interpreted as limits in couplings within models of leptoquarks, R-parity violating supersymmetry and split supersymmetry. By...
Mr
Travis Martin
(Carleton University)
30/08/2011, 15:25
New neutral gauge bosons (Z') are common in many new models of BSM physics. The LHC may be able to push the direct discovery limits for a neutral resonance (Z', R-parity violating sneutrino, RS graviton) above 3 TeV, for a 14 TeV run, and may even be able to distinguish the spin and model of the resonance up to a mass of several TeV. This talk discusses a number of observables for...
Dr
Koji Ishiwata
(caltech)
30/08/2011, 15:25
It is possible that there are additional vector-like generations where the quarks have mass terms that do not originate from weak symmetry breaking, but the leptons only get mass through weak symmetry breaking. We discuss the impact that the new leptons have on Higgs boson decay branching ratios and on the range of allowed Higgs masses in such a model. We find that if the fourth generation...
Bibhushan Shakya
(Cornell University)
30/08/2011, 15:30
Dark matter: models
We study theoretical implications of direct dark matter searches in the minimal supersymmetric standard model (MSSM). We assume that no accidental cancellations occur in the spin-independent elastic neutralino-quark scattering cross section, but do not impose any relations among the weak-scale MSSM parameters. We show that direct detection cross section below $10^-44 cm^2 requires the lightest...
Mariarosaria D'Alfonso
(UCSB)
30/08/2011, 15:30
Mr
Sebastian Frank
(Institute of High Energy Physics (HEPHY) - Vienna/Austria)
30/08/2011, 15:50
The branching ratio BR(B -> X_s gamma) is a sensitive probe for physics beyond the SM and thus an important constraint for parameter fits of SUSY models.
It is therefore highly important to have a good assessment of theoretical and computational uncertainties, including the differences in the implementations and/or approximations used in public computational tools.
We perform a detailed...
Jiang-Hao Yu
(Michigan State University)
30/08/2011, 15:50
We present a new Little Higgs model, motivated by the deconstruction of a five- dimensional gauge-Higgs model. The approximate global symmetry is SO(5) x SO(5), breaking to SO(5), with a gauged subgroup of SU(2) x SU(2) x SU(2) x U(1), breaking to SU(2)L x U(1)Y. Radiative corrections produce an additional small vacuum misalignment, breaking the electroweak symmetry down to U(1)em. Features of...
Mr
Ryosuke Sato
(Univ. Of Tokyo)
30/08/2011, 15:50
Intensity frontier: models
The asymmetric dark matter scenario is known to give an interesting
solution for the cosmic coincidence problem between baryon and dark
matter densities. In the scenario, the dark matter asymmetry, which is
translated to the dark matter density in the present universe, is
transferred from the B-L asymmetry generated in the early universe. On
the other hand, the generation of the B-L...
Prof.
Junjie Zhu
(University of Michigan)
30/08/2011, 15:55