Aspects of non-minimal gauge mediation

Satoshi Shirai, Masahito Yamazaki, Kazuya Yonekura

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number56
JournalJournal of High Energy Physics
Volume2010
Issue number6
DOIs
Publication statusPublished - 2010

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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