Dark matter at the pseudoscalar Higgs resonance in the phenomenological MSSM and SUSY GUTs

Archana Anandakrishnan, Bibhushan Shakya, and Kuver Sinha
Phys. Rev. D 91, 035029 – Published 26 February 2015

Abstract

We study dark matter at the MSSM pseudoscalar Higgs resonance (A funnel), which is one of the few remaining MSSM thermal dark matter candidates in the 100–1000 GeV range safe from direct detection constraints. To illustrate the various factors at play, this study is performed in two contrasting setups: a bottom-up phenomenological MSSM (pMSSM) approach that allows significant freedom and the top-down, highly constrained Yukawa unified SO(10) GUT model. In the pMSSM, for μ>0, the entire parameter space lies above the coherent neutrino background and mostly within reach of XENON1T and LZ, while blind spots exist at mA>800GeV for μ<0; the strongest constraints come from A/Hττ searches at the LHC. For Yukawa unified models, the confluence of Bsμ+μ constraints, fits to the bottom quark and Higgs masses, and gluino mass bounds from the LHC result in a prediction: realizing the pseudoscalar resonance requires gaugino mass nonuniversality, with a mass ratio that is determined to within a small range.

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  • Received 16 December 2014

DOI:https://doi.org/10.1103/PhysRevD.91.035029

© 2015 American Physical Society

Authors & Affiliations

Archana Anandakrishnan1,*, Bibhushan Shakya2,†, and Kuver Sinha3,‡

  • 1Department of Physics, The Ohio State University 191 West Woodruff Avenue, Columbus, Ohio 43210, USA
  • 2Michigan Center for Theoretical Physics University of Michigan, Ann Arbor, Michigan 48109, USA
  • 3Department of Physics, Syracuse University Syracuse, New York 13244, USA

  • *anandakrishnan.1@osu.edu
  • bshakya@umich.edu
  • kusinha@syr.edu

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Issue

Vol. 91, Iss. 3 — 1 February 2015

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