Peccei-Quinn Symmetric Pure Gravity Mediation

Abstract

Successful models of Pure Gravity Mediation (PGM) with radiative electroweak symmetry breaking can be expressed with as few as two free parameters which can be taken as the gravitino mass and $\tan \beta$. These models easily support a 125-126 GeV Higgs mass at the expense of a scalar spectrum in the multi-TeV range and a much lighter wino as the lightest supersymmetric particle. In these models, it is also quite generic that the Higgs mixing mass parameter, $\mu$, which is determined by the minimization of the Higgs potential is also in the multi-TeV range. For $\mu >0$, the thermal relic density of winos is too small to account for the dark matter. The same is true for $\mu <0$ unless the gravitino mass is of order 500 TeV. Here, we consider the origin of a multi-TeV $\mu$ parameter arising from the breakdown of a Peccei-Quinn (PQ) symmetry. A coupling of the PQ-symmetry breaking field, $P$, to the MSSM Higgs doublets, naturally leads to a value of $\mu \sim ⟨P{⟩}^2/M_P\sim \mathcal{O}(100)$ TeV and of order that is required in PGM models. In this case, axions make up the dark matter or some fraction of the dark matter with the remainder made up from thermal or non-thermal winos. We also provide solutions to the problem of isocurvature fluctuations with axion dark matter in this context.

17 pages, 7 figures

References in corpus (8)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Possible Signals of Wino LSP at the Large Hadron Collider
• Moduli stabilization, F-term uplifting and soft supersymmetry breaking terms
• Varying the Universality of Supersymmetry-Breaking Contributions to MSSM Higgs Boson Masses
• A Closer Look at Gaugino Masses in Pure Gravity Mediation Model/Minimal Split SUSY Model
• Correlating LHCb B_s^0 to μ^+ μ^- Results with the ATLAS-CMS Multijet Supersymmetry Search
• Non-Gaussianity from Attractor Curvaton

Cited by in corpus (8)

• Wino Dark Matter in light of the AMS-02 2015 Data
• SU(5) Grand Unification in Pure Gravity Mediation
• Light Higgsinos in Pure Gravity Mediation
• Anomaly Mediated Gaugino Mass and Path-Integral Measure
• CP-safe Gravity Mediation and Muon g-2
• Distinguishing LSP archetypes via gluino pair production at LHC13
• Pure Gravity Mediation and Chaotic Inflation in Supergravity
• Probing Bino-Gluino Coannihilation at the LHC