Flat Potential for Inflaton with a Discrete R-Invariance in Supergravity

Flat Potential for Inflaton with a Discrete R-Invariance in Supergravity
复制标题

超重力中具有离散 R 不变性的暴胀子的平坦势

DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
T. Yanagida
T. Yanagida
中科院分区：
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文献类型：
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作者：
Kazuya Kumekawa;T. Moroi;T. Yanagida

文献摘要

被引文献

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我们证明了在$N=1$超引力中，通过施加离散的$R$-不变性$Z_(N)$，自然地获得了充分膨胀所需的非常平坦的暴胀势。导出了膨胀超势中参数的几个宇宙学约束。对于n=3-10的情况，再加热温度为$(1-10^8)$GeV。文中还简要讨论了该模型中的重力子发生。
We show that a very flat potential of inflaton required for a sufficient inflation is naturally obtained in $N=1$ supergravity by imposing a discrete $R$-invariance $Z_{n}$. Several cosmological constraints on parameters in the inflaton superpotential are derived. The reheating temperature turns out to be $(1-10^8)$GeV for the cases of $n$=3--10. Baryogenesis in this model is also discussed briefly.