Pure Gravity Mediation with m_{3/2} = 10-100TeV

TL;DR

This paper explores the pure gravity mediation model in supersymmetry, focusing on gaugino mass spectrum, experimental signals, and its compatibility with a 125GeV Higgs and thermal leptogenesis.

Contribution

It provides detailed analysis of gaugino masses and experimental prospects within the pure gravity mediation framework, linking it to Higgs mass and leptogenesis.

Findings

Gaugino masses are within reach of current and future experiments.

Parameter space consistent with thermal leptogenesis can be fully explored.

The model naturally explains the 125GeV Higgs mass.

Abstract

Recently, the ATLAS and CMS collaborations reported exciting hints of a Standard Model-like Higgs boson with a mass around 125GeV. Such a Higgs boson mass can be easily obtained in the minimal supersymmetric Standard Model based on the "pure gravity mediation model" where the sfermion masses and the Higgs mass parameters are in tens to hundreds TeV range while the gauginos are in the hundreds GeV to TeV range. In this paper, we discuss detalis of the gaugino mass spectrum in the pure gravity mediation model. We also discuss the signals of the model at the current and future experiments such as cosmic ray observations and the LHC experiments. In particular, we show that the parameter space which is consistent with the thermal leptogenesis can be fully surveyed experimentally in the foreseeable future.