Inflation with a running spectral index in supergravity
| dc.creator | Kawasaki, M. | |
| dc.creator | Yamaguchi, Masahide | |
| dc.creator | Yokoyama, Jun'ichi | |
| dc.date | 2003-04-16 | |
| dc.date | 2003-06-18 | |
| dc.date.accessioned | 2026-07-07T11:31:24Z | |
| dc.date.available | 2026-07-07T11:31:24Z | |
| dc.description | The first year Wilkinson Microwave Anisotropy Probe data favors primordial adiabatic fluctuation with a running spectral index with $\ns >1$ on a large scale and $\ns <1$ on a smaller scale. The model building of inflation that predicts perturbations with such a spectrum is a challenge, because most models predict fluctuations with either $\ns >1$ (hybrid inflation) or $\ns <1$ (new, chaotic, or topological inflation). We give a sensible particle physics model in supergravity that accommodates the desired running of the spectral index using double inflation. | |
| dc.description | 13 pages, 3 figures, to appear in Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0304161 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0304161 | |
| dc.identifier | Phys.Rev.D68:023508,2003 | |
| dc.identifier | doi:10.1103/PhysRevD.68.023508 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197256 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.title | Inflation with a running spectral index in supergravity | |
| dc.type | text |