Nurcan Ozturk
(University of Texas at Arlington)
28/07/2009, 14:00
Beyond the Standard Model
Supersymmetry (SUSY) is one of the most attractive extentions of the Standard Model. If SUSY exist in nature it can be discovered at the LHC if SUSY particles have masses at sub-TeV range. SUSY discovery strategies with early data by the ATLAS and CMS experiments are presented. SUSY mass and parameter measurements are also demonstrated.
Dr
Tapas Sarangi
(High Energy Physics-Department of Physics-University of Wisconsi)
28/07/2009, 14:40
Beyond the Standard Model
An inclusive search for Supersymmetry based on lepton(s), multi-jets and
missing transverse energy final state is studied in ATLAS. We
discuss discovery potential for SUSY signal in the early LHC data with low
integrated luminosity at 10 TeV CM energy.
Gheorghe Lungu
(Rockefeller University)
28/07/2009, 15:00
Beyond the Standard Model
We present a search for supersymmetry (SUSY) in the fully hadronic final state with the CMS detector at the LHC.
This final state contains at least two jets and a significant transverse energy imbalance due to neutralinos escaping detection.
The background to all-hadronic signature arise from QCD multijet production, ttbar and electroweak boson+jet production.
These background can be...
Dr
Sudhir Gupta
(Iowa State University)
28/07/2009, 15:20
Beyond the Standard Model
If neutrinos are Dirac type, in supersymmetry (SUSY), their masses can be explained by the introduction of an additional right chiral (neutrino) superfield which interacts with other superparticles through a tiny neutrino Yukawa coupling. We found that superpartner of such a right chiral neutrino (sneutrino) can be lightest among all the superparticles in a wide range of SUSY parameter space ...
Eunsin Lee
(Texas A&M University)
28/07/2009, 15:40
Beyond the Standard Model
Many new physics models predict mechanisms that could produce a $\gamma$ and jets signature. We search in the $\gamma$ + jets and $\gamma$ + jets + $\met$ channels, independent of any model, for new physics using 2~fb$^{-1}$ of CDF Run II data collected at the Fermilab Tevatron from $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV. A variety of techniques are applied to estimate the standard...
Kevin Black
(Harvard University)
28/07/2009, 16:30
Beyond the Standard Model
The unprecedented energy of the Large Hadron Collider (LHC) will allow us to probe
the TeV energy scale for the first time and elucidate the nature of electroweak symmetry breaking.
New heavy particles may be produced leading to dramatic signatures in the LHC detectors.
The increase in energy from previous experiments will allow us to probe a previously unreachable regime. I will review...
Yunhe Xie
(Brown University)
28/07/2009, 17:10
Beyond the Standard Model
We report on a new search for charged massive stable particles
(CMSPs) at the D0 Experiment at the Fermilab Tevatron collider.
These electrically charged particles have sufficiently long lifetimes
to penetrate through the entire D0 detector before decaying. CMSPs
are predicted in many theories beyond the Standard Model. We
use time-of-flight information to search for pair-produced...
Ioannis Katsanos
(University of Nebraska - Lincoln)
28/07/2009, 17:30
Beyond the Standard Model
The high-mass spectrum of lepton and photon pairs is sensitive
to a broad array of new physics. Examples are searches for
extra dimensions in different models in the dielectron, dimuon,
and diphoton channels, photon + missing transverse energy and Z'
bosons with Standard-Model-like couplings to fermions as well
as in a variety of GUT-inspired models. In addition, the data
sample can be...
Dr
Ian-Woo Kim
(University of Wisconsin-Madison)
28/07/2009, 17:50
Beyond the Standard Model
Considering two missing energy particles with odd parity can be decayed
from a heavy particle with even parity by two-step cascade,
we observe kinematic cusp structures in invariant mass
distributions of resonant particle decay into missing particles. Knowing a
parent mass from direct resonant decay into standard model particles, we
determine the mass of the intermediate particle and the...
Aram Avetisyan
(Brown)
28/07/2009, 18:10
Beyond the Standard Model
Presented is a study of searches for two exotic particles - a heavy top quark partner with a fractional charge of 5/3, T(5/3), and its partner, the heavy B quark with charge -1/3. These particles decay to a top quark and a W boson, leading to very busy events with multi-leptons and multi-jets. Processes where same-sign dileptons are produced are considered. The backgrounds are predominantly...