Seminatural gauge mediation from product group unification

Hajime Fukuda, Hitoshi Murayama, Tsutomu T. Yanagida, Norimi Yokozaki

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We propose a focus point gauge mediation model based on the product group unification (PGU), which solves the doublet-triplet splitting problem of the Higgs multiplets. In the focus point gauge mediation, the electroweak symmetry breaking scale can be naturally explained even for multi-TeV stops. It is known that the focus point behavior appears if a ratio of the number of SU(2) doublet messengers to that of SU(3) triplet messengers is close to 5/2. Importantly, this ratio (effectively) appears in our scenario based on the PGU, if the messenger field is an adjoint representation of the SU(5) gauge group. Therefore, our focus point scenario is very predictive. It is also pointed out that the gravitino can be dark matter without spoiling the success of the thermal leptogenesis.

Original languageEnglish
Article number055032
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume92
Issue number5
DOIs
Publication statusPublished - 2015 Sep 29
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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