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SUSY07

25 July 2007 to 1 August 2007
Karlsruhe University
Europe/Zurich timezone

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Session

Colliders - Susy Phenomenology 5 (Theory)

Susy5
28 Jul 2007, 14:00
Physics Building (Karlsruhe University)

Physics Building

Karlsruhe University

Wolfgang-Gaede-Str. 1 76131 Karlsruhe Germany

Description

Chairperson: Dirk ZERWAS

Presentation materials

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  1. 206. NLO Event Generation for Chargino Production at the ILC
    Dr Tania Robens (RWTH Aachen, Institut fuer Theoretische Physik E)
    28/07/2007, 14:00
    Colliders - Susy Phenomenology
    Parallel Talk
    In the Chargino-/ Neutralinosector of the MSSM, the electroweak SUSY parameters can be determined by a small number of measurements of masses and cross sections. NLO corrections to these observables are in the percent regime, thereby matching the size of experimental fitting accuracies for joint LHC/ ILC analyses. We therefore include the NLO result for Chargino at the ILC production in...
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  2. 129. Two-photon exclusive production of supersymmetric pairs at the LHC
    Krzysztof Piotrzkowski (Universite Catholique de Louvain)
    28/07/2007, 14:20
    Colliders - Susy Phenomenology
    Parallel Talk
    At the LHC, the two-photon production of charged supersymmetric pairs has a unique signature and, for masses below 200-250 GeV, significative cross- sections. In comparison to the nominal supersymmetric studies at the LHC it offers an interesting and very complementary potential. Using the adopted CalcHEP program, interfaced to the Pythia generator, first analysis has been performed...
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  3. 118. Probing the SUSY-QCD coupling identity at LHC
    Dr Ayres Freitas (University of Zurich)
    28/07/2007, 14:40
    Colliders - Susy Phenomenology
    Parallel Talk
    Due to supersymmetry, the quark-squark-gluino Yukawa coupling is constrained to be equal to the corresponding quark-quark-gluon QCD gauge coupling. Based on earlier investigations of like-sign dilepton final states, it is shown how information about this coupling can be extracted from an analysis of squark and gluino production processes at LHC. The method is refined to be maximally...
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  4. 128. Tau polarization in SUSY cascade decays at LHC
    Dr Kentarou Mawatari (Korea Institute for Advanced Study)
    28/07/2007, 15:00
    Colliders - Susy Phenomenology
    Parallel Talk
    Tau leptons emitted in cascade decays of supersymmetric particles are polarized. The polarization may be exploited to determine spin and mixing properties of the neutralinos and stau particles involved. Details of the analysis including experimental effects such as transverse momentum cuts are presented for LHC.
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  5. 243. Reconstructing Sparticle Mass Spectra using Hadronic Decays
    Mr Are Raklev (University of Bergen)
    28/07/2007, 15:20
    Colliders - Susy Phenomenology
    Parallel Talk
    Most sparticle decay cascades envisaged at the Large Hadron Collider (LHC) involve hadronic decays of intermediate particles. We use state-of-the art techniques based on the \kt jet algorithm to reconstruct the resulting hadronic final states for simulated LHC events in a number of benchmark supersymmetric scenarios. In particular, we show that a general method of selecting...
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  6. 328. Mass Determination in SUSY-like Events with Missing Energy
    John Gunion (University of California at Davis)
    28/07/2007, 15:40
    Colliders - Susy Phenomenology
    Parallel Talk
    We demonstrate that sparticle masses in a susy decay chain can be determined to within about 1 GeV using full kinematic information about the production events. A typical decay chain that we consider is gluino pair production followed by both gluinos decaying to the 2nd lightest neutralino, each of which decays to a slepton and a lepton, followed by each of the sleptons decaying to a...
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