Silja Brensing
(Institute for Theoretical Particle Physics and Cosmology, RWTH Aachen University)
27/08/2010, 16:12
Pheno
We consider the resummation of soft gluon emission for squark and gluino hadroproduction at next-to-leading-logarithmic accuracy in the framework of the minimal supersymmetric standard model. We present predictions for all squark and gluino pair-production processes at the Tevatron and at the LHC. The size of the soft-gluon corrections and the reduction in the scale uncertainty are most...
Dr
Hiroshi Yokoya
(CERN PH-TH)
27/08/2010, 16:29
Pheno
We study bound-state effects on the pair production of gluinos at hadron colliders, in a context of the minimal supersymmetric extension of the standard model. Due to the expected large mass and the octet color-charge of gluinos, the bound-state effects can be substantial at the LHC. We find significant deformation of the invariant-mass distributions of a gluino-pair near the mass threshold,...
Sven Heinemeyer
(IFCA (CSIC, Santander))
27/08/2010, 16:46
Pheno
Various renormalization schemes are defined, analyzed analytically and
tested numerically in the decays Stop2 -> Sbot_i H+/W+ (i = 1,2).
No scheme is found that produces numerically acceptable results
over all the cMSSM parameter space, where problems occur mostly already
for real parameters.
Two schemes are identified that show the most robust behavior.
A numerical analysis of the four...
253.
Electroweak corrections to neutralino decays in supersymmetric models with and without R-parity
Mr
Stefan Liebler
(Universität Würzburg)
27/08/2010, 17:03
Pheno
SUSY models with broken R-partiy provide an interesting alternative
ansatz to explain neutrino physics, which is intrinsically supersymmetric.
In most of these models one has to calculate the neutrino mass matrix
at the one loop level to be consistent with current neutrino data. As the
same paramters govern neutrino physics and LSP decays one
obtains interesting correlations between the...
Dr
Olaf Kittel
(University of Granada)
27/08/2010, 17:20
Pheno
In the Minimal Supersymmetric Standard Model,
physical phases of complex parameters lead to CP violation.
We show how triple products of particle momenta or spins can be
used to construct asymmetries, that allow us to probe these CP phases.
We discuss the production of charginos and neutralinos at the
International Linear Collider (ILC). For the Large Hadron Collider (LHC),
we discuss CP...
Mr
Wolfgang Altmannshofer
(TU Munich)
27/08/2010, 17:37
Pheno
As indicated by recent data from Tevatron, there might be sizable NP effects in the Bs mixing phase, S_psiphi. We discuss how large values for S_psiphi can be accommodated for in the MSSM. We emphasize that while the MFV framework is not well suited to explain potentially large effects in S_psiphi, models with large flavor changing right handed currents provide natural frameworks to account...
