Inflaton decay in supergravity and gravitino problem

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

We have recently shown that, if the inflaton has a nonzero vacuum expectation value, it generically couples to any matter fields that appear in the superpotential at the tree level, and to any gauge sectors through anomalies in the supergravity. Through these processes, the inflaton decays into the supersymmetry breaking sector, producing many gravitinos. The inflaton also directly decays into a pair of the gravitinos. Taking account of these processes, we derive constraints on both inflation models and supersymmetry breaking scenarios for avoiding overproduction of the gravitinos.

本文言語English
ホスト出版物のタイトルKEK Cosmophysics Group Inaugural Conference - Accelerators in the Universe - Interplay between High Energy Physics and Cosmophysics
ページ57-60
ページ数4
DOI
出版ステータスPublished - 2008
外部発表はい
イベントKEK Cosmophysics Group Inaugural Conference - Accelerators in the Universe, AIU 2008 - Tsukuba, Japan
継続期間: 2008 3月 122008 3月 14

出版物シリーズ

名前AIP Conference Proceedings
1040
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

OtherKEK Cosmophysics Group Inaugural Conference - Accelerators in the Universe, AIU 2008
国/地域Japan
CityTsukuba
Period08/3/1208/3/14

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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