Cosmologically Viable Low-energy Supersymmetry Breaking

Abstract

A recent cosmological bound on the gravitino mass, $m_{3/2}<4.7$ eV, together with LHC results on the Higgs mass and direct searches, excludes minimal gauge mediation with high reheating temperatures. We discuss a minimal, vector-mediated model which incorporates the seesaw mechanism for neutrino masses, allows for thermal leptogenesis, ameliorates the $\mu$ problem, and achieves the observed Higgs mass and a gravitino as light as $1$-$2$ eV.

7+3 pages, 6 figures; v2: clarified color triplet decay interactions, discussed $\chi$ and $v_S$ origins, fixed minor typos, published in Phys Rev D

References in corpus (8)

• Leptogenesis
• Big-Bang Nucleosynthesis and Gravitino
• Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb${}^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• SUSY breaking mediation by throat fields
• Higgs mass prediction in the MSSM at three-loop level in a pure $\overline{\text{DR}}$ context
• Higher Order Corrections and Unification in the Minimal Supersymmetric Standard Model: SOFTSUSY3.5.0
• SU(5) Grand Unification in Pure Gravity Mediation
• Low-energy Supersymmetry Breaking Without the Gravitino Problem

Cited by in corpus (14)

• Cosmological Constraints on Light (but Massive) Relics
• Finding eV-scale Light Relics with Cosmological Observables
• A two-component vector WIMP -- fermion FIMP dark matter model with an extended seesaw mechanism
• Ripples in Spacetime from Broken Supersymmetry
• A Complete Solution to the Strong CP Problem: a SUSY Extension of the Nelson-Barr Model
• The Muon Smasher's Guide
• Non-thermal Leptogenesis after Majoron Hilltop Inflation
• Gravitino constraints on supergravity inflation
• Super-Resonant Dark Matter
• Leptogenesis and Dark Matter-Nucleon Scattering Cross Section in the SE6SSM
• Gravitational Waves in Metastable Supersymmetry Breaking
• Gauge mediation without gravitino problem by virtue of the QCD anomaly
• Leptogenesis from composite singlets
• Interactions of exotic neutralino dark matter with nucleons in $U(1)$ extensions of the MSSM originating from $E_6$ GUTs