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Complementarity of Gamma-ray and LHC Searches for Neutralino Dark Matter in the Focus Point Region

Abstract : We study the complementarity between the indirect detection of dark matter with gamma-rays in H.E.S.S. and the supersymmetry searches with ATLAS at the Large Hadron Collider in the Focus Point region within the mSUGRA framework. The sensitivity of the central telescope of the H.E.S.S. II experiment with an energy threshold of ~ 20 GeV is investigated. We show that the detection of gamma-ray fluxes of O(10^-12) cm-2s-1 with H.E.S.S. II covers a substantial part of the Focus Point region which may be more difficult for LHC experiments. Despite the presence of multi-TeV scalars, we show that LHC will be sensitive to a complementary part of this region through three body NLSP leptonic decays. This interesting complementarity between H.E.S.S. II and LHC searches is further highlighted in terms of the gluino mass and the two lightest neutralino mass difference.
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http://hal.in2p3.fr/in2p3-00252151
Contributor : Francoise Duceau <>
Submitted on : Wednesday, February 13, 2008 - 1:51:44 PM
Last modification on : Monday, May 25, 2020 - 3:34:06 PM

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Emmanuel Moulin, A. Jacholkowska, G. Moultaka, J. -L. Kneur, E. Nuss, et al.. Complementarity of Gamma-ray and LHC Searches for Neutralino Dark Matter in the Focus Point Region. Physical Review D, American Physical Society, 2008, 77/6, pp.055014. ⟨10.1103/PhysRevD.77.055014⟩. ⟨in2p3-00252151⟩

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