Radiative gravitino decays from R-parity violation
| dc.creator | Lola, S. | |
| dc.creator | Osland, P. | |
| dc.creator | Raklev, A. R. | |
| dc.date | 2007-07-17 | |
| dc.date.accessioned | 2026-07-07T11:17:51Z | |
| dc.date.available | 2026-07-07T11:17:51Z | |
| dc.description | We study radiative gravitino decay within the framework of R-violating supersymmetry. For trilinear R-violating couplings that involve the third generation of fermions, or for light gravitinos, we find that the radiative loop-decay $\tilde{G} \to γν$ dominates over the tree-level ones for a wide set of parameters. We calculate the gravitino decay width and study its implications for cosmology and collider physics. Slow-decaying gravitinos are good dark matter candidates, for a range of parameters that would also predict observable R-violating signatures in colliders. In general the branching ratios are very dependent on the relative hierarchies of R-violating operators, and may provide relevant information on the flavour structure of the underlying fundamental theory. | |
| dc.description | 17 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/0707.2510 | |
| dc.identifier | http://arxiv.org/abs/0707.2510 | |
| dc.identifier | Phys.Lett.B656:83-90,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.09.048 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/193146 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Radiative gravitino decays from R-parity violation | |
| dc.type | text |