Speaker
Dr
Stefan Hesselbach
(University of Southampton)
Description
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 light Higgs bosons at the LHC, at lowest
order of the Higgs-sparticle couplings. Complementary to previous studies we focus on
SUSY scenarios with low mass sparticle spectrum where the contributions of the
sparticles in the loops can have a significant impact on the branching ratio (BR). In
some regions of the MSSM parameter space the BR can vary by more than one order of
magnitude with the SUSY CP phases. Also in the NMSSM with an additional
singlet/singlino superfield,
where CP violation results in the mixing of all five neutral Higgs eigenstates, the
new CP violating phases can have strong implications on the Higgs phenomenology.
Authors
Dr
Poulose Poulose
(University of Southampton)
Dr
Stefan Hesselbach
(University of Southampton)
Co-authors
Mr
Shoaib Munir
(University of Southampton)
Dr
Stefano Moretti
(University of Southampton)