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Gravitino Dark Matter and the Flavour Structure of R-violating Operators | | S. Lola
; P. Osland
; A.R. Raklev
; | | Date: |
18 Nov 2008 | | Abstract: | We study gravitino dark matter and slow gravitino decays within the framework
of R-violating supersymmetry, with particular emphasis on the flavour
dependence of the branching ratios. The dominant decay modes and final state
products turn out to be very sensitive to the R-violating hierarchies. Mixing
effects can be crucial in correctly deriving the relative magnitude of the
various contributions, particularly for heavy flavours with phase space
suppression. The study of the strength of different decay rates for the
gravitino is also correlated to collider signatures expected from decays of the
Next-to-Lightest Supersymmetric Particle (NLSP) and to single superparticle
production. | | Source: | arXiv, 0811.2969 | | Services: | Forum | Review | PDF | Favorites | |
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