THE PHENOMENOLOGY OFGRAVITINO DARK MATTER SCENARIOSIN SUPERGRAVITY MODELS

摘要

We review the phenomenology of gravitino dark matter within supergravity framework. Gravitino can be dark matter if it is the lightest supersymmetric particle, which is stable if R-parity is conserved. There are several distinct sce-narios depending on what the next to lightest supersymmetric particle (NLSP) is. We discuss the constraints and summarize the phenomenology of neutralino, stau, stop and sneutrino NLSF's.