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arXiv · 1210.1967

Particle number production and time variation with non-equilibrium quantum field theory

Ryuichi Hotta·Hiroyuki Takata·Takuya Morozumi
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Abstract

We study the particle number production and its time variation using non-equilibrium quantum field theory. We study the model proposed by Hotta et.al. \cite{Hotta:2012hi} for particle number production with a heavy neutral scalar and a light complex scalar. The interaction Lagrangian contains CP violating phase and particle number violating interaction among the scalars. The particle number violating mass term is also introduced, which splits a complex scalar into two real scalars with small non-degenerate mass. Therefore, the term generates particle and anti-particle mixing. We study the long time behavior of the particle number production rate.

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Ryuichi Hotta, Hiroyuki Takata, Takuya Morozumi. 2012-10-06. Particle number production and time variation with non-equilibrium quantum field theory. https://arxiv.org/abs/1210.1967

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