Late-time entropy production and relic abundances of neutralinos

Takaaki Nagano, Masahiro Yamaguchi

研究成果: Article査読

10 被引用数 (Scopus)

抄録

Many models possess unwanted relics, which should be diluted by entropy production just before the big-bang nucleosynthesis. A field responsible for the entropy production may produce stable weakly interacting massive particles, if kinematically accessible. We compute their relic abundances by integrating out coupled equations numerically. Applying our results to supersymmetric standard models, we argue that the neutralino lightest superparticles will overdose the universe in most of the parameter space if the reheat temperature is of the order of 10 MeV.

本文言語English
ページ(範囲)267-272
ページ数6
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
438
3-4
DOI
出版ステータスPublished - 1998 10月 22

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

「Late-time entropy production and relic abundances of neutralinos」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