PT Journal
AU Restrepo, D
   Taoso, M
   Valle, JWF
   Zapata, O
TI Gravitino dark matter and neutrino masses with bilinear R-parity violation
SO Physical Review D
JI Phys. Rev. D
PY 2012
BP 023523
EP 7pp
VL 85
IS 2
DI 10.1103/PhysRevD.85.023523
LA English
AB Bilinear R-parity violation provides an attractive origin for neutrino masses and mixings. In such schemes the gravitino is a viable decaying dark matter particle whose R-parity violating decays lead to monochromatic photons with rates accessible to astrophysical observations. We determine the parameter region allowed by gamma-ray line searches, dark matter relic abundance, and neutrino oscillation data, obtaining a limit on the gravitino mass m((G) over tilde) less than or similar to 1-10 GeV corresponding to a relatively low reheat temperature T-R less than or similar to few x 10(7)-10(8) GeV. Neutrino mass and mixing parameters may be reconstructed at accelerator experiments like the Large Hadron Collider.
ER