Description
Chairperson: Dirk ZERWAS
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...
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...
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...
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.
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...
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...
