Probing the light Higgs pole resonance annihilation of dark matter in the light of XENON100 and CDMS-II observations

Abstract

We consider the prospect of lightest neutralino (${\tilde{\chi }}_1^0$) as a dark matter candidate in the light of recent interesting observations from the XENON100 and CDMS-II experiments in minimal supergravity framework with large $\tan \beta$ and non-vanishing $A_0$. Within the WMAP satisfied zone, there is a large direct detection reach of lighter ${\tilde{\chi }}_1^0$ in the lighter Higgs boson mediated resonance annihilation domain of the above scenario. It is seen that the heavier Higgs boson plays a dominating role in the ${\tilde{\chi }}_1^0-p$ cross-section in the associated zone of parameter space in spite of having a larger mass. Possible LHC signatures are discussed.

23 pages, 3 figures, 4 Tables; few comments are added

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