New inflation, preinflation, and leptogenesis
| dc.creator | Senoguz, V. N. | |
| dc.creator | Shafi, Q. | |
| dc.date | 2004-03-30 | |
| dc.date | 2004-07-22 | |
| dc.date.accessioned | 2026-07-07T10:29:07Z | |
| dc.date.available | 2026-07-07T10:29:07Z | |
| dc.description | We present a new inflation model in which the inflationary scenario including subsequent reheating is determined in part by a U(1)_R\times Z_n symmetry. A preinflation epoch can be introduced to yield, among other things, a running spectral index indicated by the WMAP analysis. The inflaton decay into right handed neutrinos, whose masses can be hierarchical because of the Z_n symmetry, leads to a reheat temperature >~10^8 GeV (~10^4-10^6 GeV in some cases), followed by non-thermal leptogenesis. | |
| dc.description | 14 pages, 4 figures, revtex4. v2: no changes in content, page layout corrected. v3: the erroneous mention of new inflation as inverted hybrid inflation is corrected. v4: slightly abridged, matches published version | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0403294 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0403294 | |
| dc.identifier | Phys.Lett.B596:8-15,2004 | |
| dc.identifier | doi:10.1016/j.physletb.2004.05.077 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177685 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | New inflation, preinflation, and leptogenesis | |
| dc.type | text |