Inflation with low reheat temperature and cosmological constraint on stable charged massive particles

Atsushi Kudo, Masahiro Yamaguchi

研究成果: Article査読

39 被引用数 (Scopus)

抄録

Abundance of stable charged massive particles (CHAMPs) is severely constrained by their searches inside sea water. We examine whether inflation with low reheat temperature can sufficiently dilute the abundance to evade this severe bound on CHAMPs, by taking into account their production and annihilation in a plasma during reheating phase. We argue that the abundance of the CHAMPs with mass less than 1 TeV will exceed the experimental bound, ruling out these CHAMPs, especially the possibility of the superpartner of tau lepton as the stable lightest superparticle. On the other hand, it is found that the CHAMP much heavier than 1 TeV can survive the bound, if the reheat temperature is low enough.

本文言語English
ページ(範囲)151-155
ページ数5
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
516
1-2
DOI
出版ステータスPublished - 2001 9 6

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

フィンガープリント

「Inflation with low reheat temperature and cosmological constraint on stable charged massive particles」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル