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arXiv · hep-ph/9608307

Gravitational Violation of R Parity and its Cosmological Signatures

V. Berezinsky·Anjan S. Joshipura·J. W. F. Valle
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Abstract

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.

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V. Berezinsky, Anjan S. Joshipura, J. W. F. Valle. 1996-08-13. Gravitational Violation of R Parity and its Cosmological Signatures. https://doi.org/10.1103/physrevd.57.147

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