High density preheating effects on Q-ball decays and inflation in the minimal supersymmetric standard model -: art. no. 031303

被引:11
作者
Berkooz, M [1 ]
Chung, DJH
Volansky, T
机构
[1] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel
[2] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.96.031303
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Nonperturbative preheating decay of postinflationary condensates often results in a high density, low momenta, nonthermal gas. In the case where the nonperturbative classical evolution also leads to Q balls, this effect shields them from instant dissociation, and may radically change the thermal history of the Universe. For example, in a large class of inflationary scenarios, motivated by the minimal supersymmetric standard model and its embedding in string theory, the reheat temperature changes by a multiplicative factor of 10(12).
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页数:4
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