Bino-Higgsino mixed dark matter in a focus point gaugino mediation

Tsutomu T. Yanagida, Norimi Yokozaki

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We investigate the neutralino dark matter in the focus point gaugino mediation model with the script O sign(100)GeV gravitino. The thermal relic abundance of the neutralino with a sizable Higgsino fraction can explain the dark matter density at the present universe. The spin-independent cross section is marginally consistent with the current upper limit from the XENON 100 experiment, and the whole parameter region can be covered at the XENON1T experiment. We also discuss the origin of the gluino mass to wino mass ratio at around 3/8, which is crucial for the mild fine-tuning in the electroweak symmetry breaking sector. It is shown that the existence of the non-anomalous discrete R-symmetry can fix this ratio to 3/8.

Original languageEnglish
Article number20
JournalJournal of High Energy Physics
Volume2013
Issue number11
DOIs
Publication statusPublished - 2013 Nov

Keywords

  • Supersymmetry Phenomenology

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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