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DPF 2009

24โ€“31 Jul 2009
Wayne State University
US/Eastern timezone

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Session

Beyond the Standard Model II

28 Jul 2009, 14:00
Wayne State University

Wayne State University

Detroit, Michigan 48201, USA

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  1. 392. Searches for Supersymmetry Signatures at the LHC
    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.
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  2. 130. Inclusive search for Supersymmetry with missing transverse energy signatures in ATLAS
    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.
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  3. 413. Search for supersymmetry at the CMS in all-hadronic final state
    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...
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  4. 4. LHC signals of a Supersymmetry scenario with right chiral neutrinos
    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 ...
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  5. 314. Photon Searches at CDF
    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...
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  6. 442. BSM searches at the LHC with Leptons and Jets
    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...
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  7. 221. Search for Charged Massive Long-Lived Particles Using Data from D0
    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...
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  8. 223. Search for New Phenomena in final states with leptons, photons, MEt
    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...
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  9. 33. Kinematic Cusps: Determining the Missing Particle Mass at the LHC
    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...
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  10. 438. Search for a Heavy Top Partner at the LHC
    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...
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