High momentum behavior of geometric bremsstrahlung in the expanding universe

Masahiro Hotta, Hajime Inoue, Izumi Joichi, Masahiro Tanaka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We discuss various kinds of geometric bremsstrahlung processes in the spatially flat Robertson-Walker universe. Despite the fact that the temperature of the universe is much higher than particle masses and the Hubble parameter, the transition probability of these processes does not vanish. It is also pointed out that explicit forms of the probability possess a new duality with respect to the scale factor of the background geometry.

Original languageEnglish
Pages (from-to)1103-1122
Number of pages20
JournalProgress of Theoretical Physics
Volume96
Issue number6
DOIs
Publication statusPublished - 1996 Dec

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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