Aspects of non-minimal gauge mediation

Satoshi Shirai, Masahito Yamazaki, Kazuya Yonekura

研究成果: Contribution to journalArticle査読

20 被引用数 (Scopus)


A large class of non-minimal gauge mediation models, such as (semi-)direct gauge mediation, predict a hierarchy between the masses of the supersymmetric standard model gauginos and those of scalar particles. We perform a comprehensive study of these non-minimal gauge mediation models, including mass calculations in semi-direct gauge mediation, to illustrate these features, and discuss the phenomenology of the models. We point out that the cosmological gravitino problem places stringent constraints on mass splittings, when the Bino is the NLSP. However, the GUT relation of the gaugino masses is broken unlike the case of minimal gauge mediation, and an NLSP other than the Bino (especially the gluino NLSP) becomes possible, relaxing the cosmological constraints. We also discuss the collider signals of the models.

ジャーナルJournal of High Energy Physics
出版ステータス出版済み - 2010

All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学


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