Gravitational violation of R-parity and its cosmological signatures - INSPIRE

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Gravitational violation of R-parity and its cosmological signatures

V. Berezinsky
(
- Gran Sasso
)
,
Anjan S. Joshipura
(
- Ahmedabad, Phys. Res. Lab
)
,
J.W.F. Valle
(
- Valencia U.
)

Aug, 1996

10 pages

Published in:

Phys.Rev.D 57 (1998) 147-151

e-Print:

hep-ph/9608307 [hep-ph]

DOI:

10.1103/PhysRevD.57.147

Report number:

INFN-TH-97-05

View in:

reference search39 citations

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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.

12.60.Jv
14.80.Ly
11.30.Er
95.30.Cq
R parity: violation
gravitation: effect
supersymmetry
dark matter
sparticle: neutral particle
sparticle: decay modes

References(27)

Figures(0)

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