Mr
Mathias BUTENSCHÖN
(Universität Hamburg)
27/09/2007, 16:30
In most of the mass range encompassed by the limits from the direct search and the
electroweak precision test, the Higgs boson of the standard model preferably decays
to bottom quarks. We calculated, in analytic form, the dominant two-loop electroweak
correction, of O(G_F^2 m_t^4), to the partial width of this decay. It amplifies the
familiar enhancement due to the O(G_F m_t^2) one-loop...
Dr
theodoros diakonidis
(DESY, Zeuthen)
27/09/2007, 17:00
The 1-loop computation of the processes $\tchi_i \tchi_j \to \gamma Z$ has been
performed at an arbitrary c.m. energy for any pair of MSSM neutralinos. As an
application suitable for Dark
Matter (DM) searches, the neutralino-neutralino annihilation is studied at the limiting
case of vanishing relative velocity, describing the present DM distribution in the
galactic
halo; and at a...
Mr
Leonardo Vernazza
(Institute für Theoretische Physik E, RWTH Aachen)
27/09/2007, 17:30
I present an analysis of Hadronic $B$ decays in the MSSM with large $\tan
\beta$. I consider all new four-quark operators arising in the MSSM and I
give estimates for the corresponding Wilson coefficients. I select the most
relevant new four-quark operators and I calculate their contribution to non
leptonic $B$ decays. Significant differences with the SM are found in
penguin...
