Light Sparticles from a Light Singlet in Gauge Mediation

B.C. Allanach (1) , M. Badziak (2) , Cyril Hugonie (3) , Robert Ziegler (4)

1 CAM - University of Cambridge [UK]
2 UW - University of Warsaw
3 LUPM - Laboratoire Univers et Particules de Montpellier
4 LPTHE - Laboratoire de Physique Théorique et Hautes Energies

We revisit minimal gauge mediation in the next-to-minimal supersymmetric standard model. We show that in this scenario 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 O(100) GeV singlet-like Higgs boson. Sparticle searches at the LHC may come with several additional b−jets or taus and may involve displaced vertices. The supersymmetric production cross-section at the 13 TeV LHC can be O(10 − 100) fb, leading to great prospects for the discovery in the early phase of the LHC Run II.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

B.C. Allanach, M. Badziak, Cyril Hugonie, Robert Ziegler. Light Sparticles from a Light Singlet in Gauge Mediation. Physical Review D, 2015, 92, pp.015006. ⟨10.1103/PhysRevD.92.015006⟩. ⟨hal-01118642⟩