Light Sparticles from a Light Singlet in Gauge Mediation

Abstract

We revisit a simple model that combines minimal gauge mediation and the next-to-minimal supersymmetric standard model. We show that one can obtain a 125 GeV Standard Model-like Higgs boson with stops as light as 1.1 TeV, thanks to the mixing of the Higgs with a singlet state at O(90-100) GeV. Sparticle searches at the LHC may come with additional b-jets or taus and may involve displaced vertices. The sparticle production cross-section at the 13 TeV LHC can be O(10-100) fb, leading to great prospects for discovery in the early phase of LHC Run II.

5 pages, 1 figure. v2 has added electroweak cross-section information and comments about the domain wall problem and warm dark matter constraints. v4 has two additional references

References in corpus (10)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• An Introduction to PYTHIA 8.2
• Search for Neutral MSSM Higgs Bosons at LEP
• Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV
• Search for the direct production of charginos, neutralinos and staus in final states with at least two hadronically decaying taus and missing transverse momentum in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Dynamical mu Term in Gauge Mediation
• NMSSM with a singlino LSP: possible challenges for searches for supersymmetry at the LHC
• The semi-constrained NMSSM satisfying bounds from the LHC, LUX and Planck