Dr
Peter Marquard
(KIT)
24/08/2010, 16:12
Pheno
We present new results for gluino pair production at the LHC. We concentrate on production around threshold using an approach based on non-relativistic QCD. In particular, we discuss two different cases, the squarks being heavier than the gluino, here bound states of two gluinos can be formed and possibly observed, and a more general case covering open gluino production for arbitrary ratios...
Dr
Yousuke Kataoka
(Tokyo ICEPP)
24/08/2010, 16:29
Pheno
We show first results of early inclusive searches for new physics,
in particular supersymmetry, in events with multiple isolated
high momentum leptons, and possibly jets and missing transverse energy,
with the ATLAS detector at the LHC, in the initial 7 TeV
data set.
Dr
James Francis Hirschauer
(FNAL)
24/08/2010, 16:46
Pheno
We report on a search for new physics in dijet production at CMS, using the first pp collision data at sqrt{s}=7 TeV provided by CERN's Large Hadron Collider. The measured dijet mass spectrum is compared with QCD predictions. We use the dijet mass spectrum to search for dijet resonances that could come from several models, such as, axigluons, flavor univerals colorons, excited quarks or E6...
Dr
Kazuki Sakurai
(Cambridge University)
24/08/2010, 17:03
Pheno
A method is proposed for determining the masses of the new particles in collider events containing a pair of effectively identical decay chains. By first determining the upper edge of the dilepton invariant mass spectrum, we reduce the problem to a curve for each event in the 3-dimensional space of
mass-squared differences. A statistical approach is applied to take account of mismeasurement...
Dr
Mark Hodgkinson
(University of Sheffield)
24/08/2010, 17:20
Pheno
A broad range of models for new physics predict enhanced couplings to
third generation quarks. We report on early searches for new physics,
in particular supersymmetry, with the ATLAS detector at the LHC,
focusing on events with b-tagged jets and missing
transverse energy. We discuss the
relevant performance of the ATLAS detector
in tagging bottom quark jets in first collision...
Mr
Yuriy Pakhotin
(Univ. of Florida)
24/08/2010, 17:37
Pheno
We present methods for background determinations in SUSY searches with signatures involving like-sign di-leptons or tri-leptons. These signatures have very low expected backgrounds in the Standard Model and have the characteristics of a rare search in which one searches for a small signal over a very small background. We present early results from studies of methods for data-driven background...
Mr
Shohei Sugiyama
(Nagoya University)
24/08/2010, 17:54
Pheno
Next to minimal Supersymmetric standard model is a solution to
the mu problem in minimal supersymmetric standard model.
We discuss how one can distinguish these two models at Large Hadron
Collider. We find that signals from the third lightest neutralino are
important.
