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Current experimental constraints on the lightest Higgs boson mass in the constrained MSSM | | Junjie Cao
; Zhaoxia Heng
; Dongwei Li
; Jin Min Yang
; | | Date: |
19 Dec 2011 | | Abstract: | We examine the parameter space of the constrained MSSM by considering various
experimental constraints. For the dark matter sector, we require the neutralino
dark matter to account for the relic density measured by the WMAP and satisfy
the XENON limits on its scattering rate with the nucleon. For the collider
constraints, we consider all relevant direct and indirect limits from LEP,
Tevatron and LHC as well as the muon anomalous magnetic moment. Especially, for
the limits from $B_s o mu^+mu^-$, we either directly consider its branching
ratio with the latest LHC data or alternatively consider the double ratio of
the purely leptonic decays defined by $[Br(B_s o mu^+mu^-)/Br(B_mu o
au
u_ au)]/[Br(D_s o au
u_ au)/Br(D o au mu_ au)]$. We find that
under these constraints, the lightest Higgs boson ($h$) in the CMSSM and NUHM2
is upper bounded by 124 GeV. We also find that for these models the di-photon
Higgs signal at the LHC is suppressed relative to the SM prediction, and that
the lower bound of the top-squark mass goes up with $m_h$, reaching 600 GeV for
m_h=124 GeV. | | Source: | arXiv, 1112.4391 | | Services: | Forum | Review | PDF | Favorites | |
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