Constraints on both bilinear and trilinear R-parity violating couplings from neutrino laboratories and astrophysics data

Abstract

We consider neutrino masses generated at tree level and at one loop, through fermion--sfermion loop diagrams, in the MSSM with R-parity violation. Using the $(3\times 3)$ mass and mixing matrices for three generations of neutrinos and the present experimental results on neutrinos from laboratories and astrophysics simultaneously, we put bounds on both trilinear (${\lambda }_{ijk},{\lambda }_{ijk}^{\prime }$) and bilinear (${\mu }_e,{\mu }_{\mu },{\mu }_{\tau }$) R-parity-violating couplings.

Comments: 16 pages, 1 PS figures, REVTeX