Description
Chairperson: Werner POROD
Mr
Christian Spethmann
(Cornell University)
7/31/07, 2:00 PM
Colliders - Susy Phenomenology
Parallel Talk
Null results of experimental searches for the Higgs boson and the superpartners imply
a certain amount of fine-tuning in the electroweak sector of the Minimal
Supersymmetric Standard Model (MSSM). The "golden region'' in the MSSM parameter
space is the region where the experimental constraints are satisfied and the amount
of fine-tuning is minimized. In this region, the stop trilinear soft...
Roberto Franceschini
(Scuola Normale Superiore Pisa)
7/31/07, 2:20 PM
Colliders - Susy Phenomenology
Parallel Talk
Recently a non conventional scenario for low energy SUSY has been
proposed (lambdaSusy). The main features of this model are an additional
scalar singlet and a nearly-strong coupling in the scalar potential.
This leads to a heavy higgs boson consistently with EWPT.
Collider phenomenology for this model is quite different from standard
Susy. In this work we address the issue of detection...
Prof.
Howard Baer
(Florida State University)
7/31/07, 2:40 PM
Colliders - Susy Phenomenology
Parallel Talk
While most of parameter space of the mSUGRA model is excluded by the constraint on
dark matter relic density, a variety of well-motivated models with non-universal soft
breaking terms can easily accommodate the relic abundance. I survey various models
with non-universal scalar and gauginos masses by the names of NUHM1, NUHM2, NMH,
MWDM, BWCA-DM and compressed SUSY, or LM3DM. Each of these...
Mr
Andrew Box
(University of Hawaii)
7/31/07, 3:00 PM
Colliders - Susy Phenomenology
Parallel Talk
In a wide class of supersymmetric models, the soft SUSY breaking parameters are determined by high scale
physics. Using an appropriate high scale ansatz, weak scale SUSY couplings relevant for phenomenology can then
be theoretically calculated using renormalization group (RG) methods. This procedure also allows us to obtain
predictions for the flavour structure of the theory. To...
Thomas Gajdosik
(Fizikos Institutas and Vilnius University)
7/31/07, 3:20 PM
Colliders - Susy Phenomenology
Parallel Talk
Nonlinear gauge fixing is used for checking the internal consistencies of automated
calculations. We implement the nonlinear gauge fixing, as proposed by Boudjema and
Chopin, into FeynArts. We have to modify not only the model files, but also the
Lorentz.gen file, as the nonlinear gauge fixing introduces terms that are not
contained in the standard form for the vertices. We check our...
Alexei Sheplyakov
(JINR)
7/31/07, 3:40 PM
Colliders - Susy Phenomenology
Parallel Talk
the main objectives of the ffmssmsc library are
1. Given the set of SM and QCD "observables", the model of SUSY
breaking, calculate the MSSM Lagrangian parameters.
2. Given the MSSM Lagrangian parameters, calculate the physical (pole)
masses of the superpartners.
I discuss relevant physical principles, some implementation details,
and accuracy estimates.
The draft is...
