1998/01/14 by Karim Benakli, Benakli, Karim
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.hep-ph/9801303
12 pages, latex, uses sprocl.sty
arxiv created 1998/01/14 · arxiv updated 2009/11/30
We discuss the possible generation of R-parity violating bilinear terms μi Li H2 in both cases of gravity and gauge mediated supersymmetry breaking. Some phenomenological aspects are reviewed. In particular for scenario where μi depend on the vacuum expectation values of some fields S, its fermionic partner S plays the role of a sterile neutrino. This situation is quiet generic in the case of models arising from M-theory where S is a modulus field. Observable effects are expected to be seen if the mass and mixing of S with active neutrinos lie in an interesting region of parameters. This is naturally the case in gauge mediated supersymmetry breaking and some class of no-scale supergravity models where the gravitino mass is very small. For models with gravitino mass m3/2∼ TeV, we discuss the possibility that the modulino mass is of the order of m23/2/MPl.