Baryogenesis from an Earlier Phase Transition
| dc.creator | Shu, Jing | |
| dc.creator | Tait, Tim M. P. | |
| dc.creator | Wagner, Carlos E. M. | |
| dc.date | 2006-10-27 | |
| dc.date | 2007-02-19 | |
| dc.date.accessioned | 2026-07-07T11:58:53Z | |
| dc.date.available | 2026-07-07T11:58:53Z | |
| dc.description | We explore the possibility that the observed baryon asymmetry of the universe is the result of an earlier phase transition in which an extended gauge sector breaks down into the $SU(3)_C \times SU(2)_L \times U(1)_Y$ of the Standard Model. Our proto-typical example is the Topflavor model, in which there is a separate $SU(2)_1$ for the third generation from the $SU(2)_2$ felt by the first two generations. We show that the breakdown of $SU(2)_1 \times SU(2)_2 \to SU(2)_L$ results in lepton number being asymmetrically distributed through-out the three families, and provided the SM electroweak phase transition is {\em not} strongly first order, results in a non-zero baryon number, which for parameter choices that can be explored at the LHC, may explain the observed baryon asymmetry. | |
| dc.description | 25 pages, 6 figures, submitted to PRD | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610375 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610375 | |
| dc.identifier | Phys.Rev.D75:063510,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.063510 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206377 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Baryogenesis from an Earlier Phase Transition | |
| dc.type | text |