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arXiv · 1109.6529

Probing a Mixed Neutralino Dark Matter Model at the 7 TeV LHC

Monoranjan Guchait·D. P. Roy·Dipan Sengupta
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Abstract

We have analyzed the prospect of probing a non-universal gaugino mass model of mixed bino-higgsino dark matter at the current 7 TeV run of LHC. It provides cosmologically compatible dark matter relic density over two broad bands of parameters, corresponding to $m_{\gl} < m_{\sq}$ and $m_{\gl} \sim m_{\sq}$. The SUSY spectrum of this model has two distinctive features : (i) an approximate degeneracy among the lighter chargino and neutralino masses, and (ii) an inverted mass hierarchy of squark masses. We find that these features can be exploited to obtain a viable signal upto $m_{\gl} \sim$ 800 GeV over both the parameter bands with an integrated luminosity 5/fb.

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Monoranjan Guchait, D. P. Roy, Dipan Sengupta. 2011-09-29. Probing a Mixed Neutralino Dark Matter Model at the 7 TeV LHC. https://doi.org/10.1103/physrevd.85.035024

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