Dark matter in split SUSY with intermediate higgses

  • Kingman Cheung
  • Ran Huo
  • Jae Sik Lee
  • Yue-Lin Sming Tsai
Open Access
Regular Article - Theoretical Physics

Abstract

The searches for heavy Higgs bosons and supersymmetric (SUSY) particles at the LHC have left the minimal supersymmetric standard model (MSSM) with an unusual spectrum of SUSY particles, namely, all squarks are beyond a few TeV while the Higgs bosons other than the one observed at 125 GeV could be relatively light. In light of this, we study a scenario characterized by two scales: the SUSY breaking scale or the squark-mass scale (M S ) and the heavy Higgs-boson mass scale (MA). We perform a survey of the MSSM parameter space with M S ≲ 1010 GeV and M A ≲ 104 GeV such that the lightest Higgs boson mass is within the range of the observed Higgs boson as well as satisfying a number of constraints. The set of constraints include the invisible decay width of the Z boson and that of the Higgs boson, the chargino-mass limit, dark matter relic abundance from Planck, the spin-independent cross section of direct detection by LUX, and gamma-ray flux from dwarf spheroidal galaxies and gamma-ray line constraints measured by Fermi LAT. Survived regions of parameter space feature the dark matter with correct relic abundance, which is achieved through either coannihilation with charginos, A/H funnels, or both. We show that future measurements, e.g., XENON1T and LZ, of spin-independent cross sections can further squeeze the parameter space.

Keywords

Supersymmetry Phenomenology 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2015

Authors and Affiliations

  • Kingman Cheung
    • 1
    • 2
    • 5
  • Ran Huo
    • 3
  • Jae Sik Lee
    • 4
  • Yue-Lin Sming Tsai
    • 3
  1. 1.Department of PhysicsNational Tsing Hua UniversityHsinchuTaiwan
  2. 2.Division of Quantum Phases and Devices, School of PhysicsKonkuk UniversitySeoulSouth Korea
  3. 3.Kavli IPMU (WPI)The University of TokyoKashiwaJapan
  4. 4.Department of PhysicsChonnam National UniversityGwangjuSouth Korea
  5. 5.Physics DivisionNational Center for Theoretical SciencesHsinchuTaiwan

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