Leptogenesis at Low Scale
| dc.creator | Boubekeur, Lotfi | |
| dc.date | 2002-08-01 | |
| dc.date.accessioned | 2026-07-07T03:47:37Z | |
| dc.date.available | 2026-07-07T03:47:37Z | |
| dc.description | A typical problem of the leptogenesis scenario is the mismatch between the maximum reheat temperature implied by gravitino overproduction bound and the minimum temperature required to create thermally the lightest right-handed neutrino. We explore the possibility of baryogenesis via leptogenesis in the presence of low scale mass right-handed neutrino. In such a scenario, right-handed neutrinos are created thermally at low reheat temperatures without relying on non-perturbative production mechanisms. We focus on two specific realizations of the scenario, namely the out-of-equilibrium decay of right-handed neutrinos (Fukugita-Yanagida) and the leptogenesis via the $LH_u$ flat direction (Affleck-Dine). We find that in general, the two scenarios are able to produce the required baryon excess for a reasonable amount of CP violation. | |
| dc.description | LateX, 12 pages, axodraw figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0208003 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0208003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41733 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Leptogenesis at Low Scale | |
| dc.type | text |