Dark Matter at the Pseudoscalar Higgs Resonance in the pMSSM and SUSY GUTs

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 set-ups: 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 $\mu >0$, the entire parameter space lies above the coherent neutrino background and mostly within reach of XENON1T and LZ, while blind spots exist at $m_A>800$GeV for $\mu <0$; the strongest constraints come from $A/H\to \tau \tau$ searches at the LHC. For Yukawa unified models, the confluence of $B_s\to {\mu }^{+}{\mu }^{-}$ 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 non-universality, with a mass ratio that is determined to within a small range.

14 pages, 6 figures

References in corpus (17)

• Dark Matter Results from 225 Live Days of XENON100 Data
• The Well-Tempered Neutralino
• Search for neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• The Poker Face of the Majoron Dark Matter Model: LUX to keV Line
• Gluon contribution to the dark matter direct detection
• Indirect Probes of the MSSM after the Higgs Discovery
• Leptoquarks, Dark Matter, and Anomalous LHC Events
• Cladogenesis: Baryon-Dark Matter Coincidence from Branchings in Moduli Decay
• Mirage in the Sky: Non-thermal Dark Matter, Gravitino Problem, and Cosmic Ray Anomalies
• Supersymmetry confronts Bs -> mu+mu-: Present and future status
• Mirage Pattern from the Heterotic String
• Measuring Modular Weights in Mirage Unification Models at the LHC and ILC
• Yukawa Unification Predictions for the LHC
• Challenging SO(10) SUSY GUTs with family symmetries through FCNC processes
• Heart of Darkness: The Significance of the Zeptobarn Scale for Neutralino Direct Detection
• LHC Phenomenology of SO(10) Models with Yukawa Unification II
• A Predictive Yukawa Unified SO(10) Model: Higgs and Sparticle Masses