Subcritical hybrid inflation in a generalized superconformal model

被引：2
|
作者：
Gunji, Yoshihiro [1 ]
Ishiwata, Koji [1 ]
机构：
[1] Kanazawa Univ, Inst Theoret Phys, Kanazawa, Ishikawa 9201192, Japan
来源：
PHYSICAL REVIEW D | 2021年 / 104卷 / 12期
关键词：
SYMMETRY; TERM;
D O I：
10.1103/PhysRevD.104.123545
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study a generalized superconformal model that gives rise to a subcritical regime of D-term hybrid inflation. Exhibiting the model both in a Jordan frame and in the Einstein frame, the effective potential of the subcritical regime is derived in the Einstein frame. It turns out that the inflaton-waterfall field dynamics leads to various types of inflaton potential. Consequently, the tensor-to-scalar ratio is found to range from 10(-4) (10(-3)) to 0.1 for getting 60 (50) e-folds before the end of inflation.
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页数：18
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