Particle production in the background with VEV depending on time
High Energy Physics - Phenomenology
2015-10-07 v1
Abstract
It is known that time-dependent vacuum expectation value of the background field may lead to abundant particle production in the early Universe. In supersymmetric theories bosons and fermions are produced in a correlated manner that depends on the details of the supersymmetric scenario. Paper presents the general method of calculating the number density of produced particles based on the WKB approximation and the generalized Bogoliubov transformation law. The impact of the backreaction and rescattering is emphasized, also in models with more than one coupling constant.
Keywords
Cite
@article{arxiv.1510.01633,
title = {Particle production in the background with VEV depending on time},
author = {Olga Czerwinska and Seishi Enomoto and Zygmunt Lalak},
journal= {arXiv preprint arXiv:1510.01633},
year = {2015}
}
Comments
10 pages, 7 figures, proceeding of a talk given at "18th International Conference From the Planck Scale to the Electroweak Scale" held in Ioannina, Greece, 25-29 May 2015