Enhanced diphoton signal of the Higgs boson and the muon g-2 in gauge mediation models

Ryosuke Sato, Kohsaku Tobioka, Norimi Yokozaki

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

We study the diphoton signal of the Higgs boson in gauge mediated supersymmetry breaking models, which can explain both the Higgs boson mass of around 125 GeV and the result of the muon g- 2 experiment. We consider two possible extensions of gauge mediation models: inclusion of vector-like matters, and a mixing between a messenger and the up-type Higgs. The large left-right mixing of staus is induced in both scenarios, resulting in the enhanced diphoton signal. We include a constraint from a charge breaking minimum, which is severe for the large left-right mixing of staus. The branching fraction of h→. γγ can be about 20-30% larger than that of the Standard Model Higgs boson, in the region of parameter space where the Higgs boson mass of around 125 GeV and the muon g- 2 are explained.

Original languageEnglish
Pages (from-to)441-445
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume716
Issue number3-5
DOIs
Publication statusPublished - 2012 Oct 2
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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