High density preheating effects on Q-ball decays and inflation in the minimal supersymmetric standard model.
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).
Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100, Israel. micha.berkooz@weizmann.ac.il
Micha
M
Berkooz
Daniel J H
DJ
Chung
Tomer
T
Volansky