Sneutrino Hybrid Inflation in Supergravity
| dc.creator | Antusch, Stefan | |
| dc.creator | Bastero-Gil, Mar | |
| dc.creator | King, Steve F. | |
| dc.creator | Shafi, Qaisar | |
| dc.date | 2004-11-22 | |
| dc.date | 2005-04-29 | |
| dc.date.accessioned | 2026-07-07T10:29:19Z | |
| dc.date.available | 2026-07-07T10:29:19Z | |
| dc.description | We propose a hybrid inflation scenario in which the singlet sneutrino, the superpartner of the right-handed neutrino, plays the role of the inflaton. We study a minimal model of sneutrino hybrid inflation in supergravity, where we find a spectral index $n_s \approx 1 + 2 γ$ with $|γ| \lesssim 0.02$, and predict a running spectral index $|d n_s/d\ln k| \ll |γ|$ and a tensor-to-scalar ratio $r \ll γ^2$ for field values well below the Planck scale. In our scenario, the baryon asymmetry of our universe can be explained via non-thermal leptogenesis and a low reheat temperature $T_{RH} \approx 10^{6}$ GeV can be realized. | |
| dc.description | 4 pages; minor corrections; version to appear in Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0411298 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0411298 | |
| dc.identifier | Phys.Rev.D71:083519,2005 | |
| dc.identifier | doi:10.1103/PhysRevD.71.083519 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177759 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.title | Sneutrino Hybrid Inflation in Supergravity | |
| dc.type | text |