Neutralino dark matter scattering and $B_s \to μ^+ μ^-$ in SUSY models

Details Neutralino dark matter scattering and $B_s \to μ^+ μ^-$ in SUSY models Neutralino dark matter scattering and $B_s \to μ^+ μ^-$ in SUSY models

2004-06-03

arxiv.org/abs/hep-ph/0406033v2

JHEP0502:067,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

version to appear in JHEP

Scientific paper

10.1088/1126-6708/2005/02/067

It is pointed out that there is a strong correlation between the neutralino dark matter scattering cross section $\sigma_{\tilde{\chi} p}$ and the branching ratio for $B_s \to \mu^+ \mu^-$ within minimal supergravity (mSUGRA) and its extensions. This correlation arises mainly from $\tan\beta$ and heavy neutral Higgs mass dependence, and shows a nice interplay between vastly different two observables within supersymmetric models. Current upper limit on $B(B_s \to \mu^+ \mu^-) < 5.8 \times 10^{-7}$ excludes substantial parameter space where $\sigma_{\tilde{\chi} p}$ is within the CDMS sensitivity region.

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