6533b86ffe1ef96bd12cdeea
RESEARCH PRODUCT
Gravitational violation of R parity and its cosmological signatures
Jose W.f. ValleVeniamin BerezinskyAnjan S. Joshipurasubject
PhysicsNuclear and High Energy PhysicsParticle physicsAge of the universeDark matterHigh Energy Physics::PhenomenologyPlanck massFOS: Physical sciencesFísicaSupersymmetryLightest Supersymmetric ParticleHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)R-parityNeutralinoHigh Energy Physics::ExperimentMinimal Supersymmetric Standard Modeldescription
The discrete R-parity ($R_P$) usually imposed on the Supersymmetric (SUSY) models is expected to be broken at least gravitationally. If the neutralino is a dark matter particle its decay channels into positrons, antiprotons and neutrinos are severely constrained from astrophysical observations. These constraints are shown to be violated even for Planck-mass-suppressed dimension-five interactions arising from gravitational effects. We perform a general analysis of gravitationally induced $R_P$ violation and identify two plausible and astrophysically consistent scenarios for achieving the required suppression.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-08-13 |