Low scale leptogenesis with an SU(2)_L singlet scalar
| dc.creator | Frigerio, Michele | |
| dc.date | 2006-10-17 | |
| dc.date | 2007-01-22 | |
| dc.date.accessioned | 2026-07-07T10:42:06Z | |
| dc.date.available | 2026-07-07T10:42:06Z | |
| dc.description | We consider thermal leptogenesis as the origin of the matter-antimatter asymmetry of the Universe. Some phenomenologically unpleasant features of the usual leptogenesis scenario are reviewed. We propose a minimal alternative, which makes use of a charged scalar $δ^+$, singlet under $SU(2)_L$. Such particle is contained in natural extensions of the Standard Model. The lepton asymmetry is generated by the decays of a right-handed neutrino into $δ^+$ and a right-handed charged lepton and it turns out to be sufficiently large for scales as low as $\sim$ TeV. The phenomenological signatures at colliders are discussed. | |
| dc.description | 4 pages, 2 epsi figures, revtex4.cls, slac_two.rtx; talk presented at the IPM Conference on Lepton and Hadron Physics, Tehran, Iran, May 15-20, 2006; PSN: IPM-LHP06-19May | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610211 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610211 | |
| dc.identifier | ECONFC0605151:0021,2006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181834 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Low scale leptogenesis with an SU(2)_L singlet scalar | |
| dc.type | text |