J. P. Hall, S. F. King, R. Nevzorov, S. Pakvasa, M. Sher
We study the decays of the lightest Higgs boson within the exceptional
supersymmetric (SUSY) standard model (E6SSM). The E6SSM predicts three families
of Higgs-like doublets plus three SM singlets that carry U(1)_{N} charges. One
family of Higgs-like doublets and one SM singlet develop vacuum expectation
values. The fermionic partners of other Higgs-like fields and SM singlets form
inert neutralino and chargino states. Two lightest inert neutralinos tend to be
the lightest and next-to-lightest SUSY particles (LSP and NLSP). The considered
model can account for the dark matter relic abundance if the lightest inert
neutralino has mass close to half the Z mass. In this case the usual SM-like
Higgs boson decays more than 95% of the time into either LSPs or NLSPs. As a
result the decays of the lightest Higgs boson into l^{+} l^{-} + X might play
an essential role in the Higgs searches. This scenario also predicts other
light inert chargino and neutralino states below 200 GeV and large LSP direct
detection cross-sections which is on the edge of observability of XENON100.
View original:
http://arxiv.org/abs/1109.4972
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