2015/10/12 by Allanach, Ben, Badziak, Marcin, Hugonie, Cyril +1
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)
paper · doi:10.48550/arxiv.1510.03143
Relatively light stops in gauge mediation models are usually made compatible with the Higgs mass of 125 GeV by introducing direct Higgs-messenger couplings. We show that such couplings are not necessary in a simple and predictive model that combines minimal gauge mediation and the next-to-minimal supersymmetric standard model (NMSSM). 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 \cal O(90-100) GeV that can explain the LEP excess. In this scenario the singlet-higgs-higgs superfields coupling λ is small and tanβ large. 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 \mathcal O(10-100) fb, leading to great prospects for discovery in the early phase of LHC Run II.