Supersymmetric and smooth hybrid inflation in the light of WMAP3

被引：71
|
作者：
ur Rehman, Mansoor [1 ]
Senoguz, V. N. [1 ]
Shafi, Qaisar [1 ]
机构：
[1] Univ Delaware, Dept Phys & Astron, Bartol Res Inst, Newark, DE 19716 USA
来源：
PHYSICAL REVIEW D | 2007年 / 75卷 / 04期
关键词：
D O I：
10.1103/PhysRevD.75.043522
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In their minimal form both supersymmetric and smooth hybrid inflation yield a scalar spectral index n(s) close to 0.98, to be contrasted with the result n(s)=0.951(-0.019)(+0.015) from WMAP3. To realize better agreement, following Bastero-Gil, King, and Shafi, we extend the parameter space of these models by employing a nonminimal Kahler potential. We also discuss nonthermal leptogenesis by inflaton decay and obtain new bounds in these models on the reheat temperature to explain the observed baryon asymmetry.
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页数：9
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