SUSY07

Session

Colliders - Higgs Phenomenology 4 (Theory)

Higgs4

27 Jul 2007, 16:30

Physics Building (Karlsruhe University)

208. Higgs boson decays in the Complex MSSM

Ms Karina Williams (IPPP, Physics Department, University of Durham)

27/07/2007, 16:30

Colliders - Higgs Phenomenology

Parallel Talk

The analysis of the LEP results showed that, in parts of the MSSM parameter space with non-zero complex phases, it's possible that a Higgs boson could have been as light as 40 GeV and yet still have escaped detection. This region is dominated by the Higgs cascade decay (h2 -> h1 + h1, where h1 is the lightest and h2 is the second lightest neutral Higgs boson respectively). Full 1-loop...

301. Higgs production and decay in SUSY with CP violation

Dr Stefan Hesselbach (University of Southampton)

27/07/2007, 16:50

Colliders - Higgs Phenomenology

Parallel Talk

In SUSY models with CP violation the production cross sections and decay branching ratios of Higgs bosons may strongly depend on the new CP-violating phases which has to be taken into account in the Higgs search at LHC. In the MSSM with explicit CP violation we analyze the phase dependence of the di-photon decay channel of neutral Higgs bosons, which is an important detection channel for...

252. The Higgs sector in the MSSM with CP-phases at higher orders

Dr Heidi Rzehak (Paul-Scherrer-Institut, Villigen PSI, Switzerland)

27/07/2007, 17:10

Colliders - Higgs Phenomenology

Parallel Talk

Higher order corrections in the MSSM with non-vanishing CP-phases can induce mixing between the CP-even and the CP-odd states. In particular, the lightest Higgs boson is not purely CP-even but receives a CP-odd component. Results are presented for the leading two-loop contributions of O(alpha_t alpha_s) to the masses and mixing effects in the Higgs sector of the MSSM with non-vanishing...

300. Higgs Masses in the Complex MSSM with FeynHiggs

Dr Thomas Hahn (MPI Munich)

27/07/2007, 17:30

Colliders - Higgs Phenomenology

Parallel Talk

FeynHiggs is a program for the computation of Higgs-boson masses and mixings in the complex MSSM. It also supplies derived information such as Higgs branching ratios and production cross-sections. This talk will review the latest version 2.6 and focus in particular on the implementation of the Higgs mixing in the presence of complex phases.

242. Higgs-Boson Phenomenology in the NUHM

Dr Georg Weiglein (IPPP, Durham), Dr Sven Heinemeyer (IFCA, Santander)

27/07/2007, 17:50

Colliders - Higgs Phenomenology

Parallel Talk

We investigate the Higgs phenomenology in the non-universal Higgs model (NUHM). Assuming that the lightest supersymmetric particle (LSP) provides the cold dark matter density preferred by WMAP and other cosmological data, we define MA-tan_beta planes that are also in agreement with electroweak precision observables and B physics observables. Within these planes we analyze the...

346. Light MSSM Higgs boson scenario and its test at hadron colliders

Dr Alexander Belyaev (Southampton University - Rutherford Lab)

27/07/2007, 18:10

Colliders - Higgs Phenomenology

Parallel Talk

In the Minimal Supersymmetric Standard Model, the possibility for the lightest CP-even Higgs boson to be lighter than Z-boson (as low as about 60 GeV) is, contrary to the usual belief, is not yet excluded by LEP2 data or any other existing experimental data. This Light Higgs boson scenario (LHS) is characterized by suppressed ZZh coupling and the decay branching ratio Br(h/A-> bb) as...