Low-scale gaugino mediation, lots of leptons at the LHC

Abstract

Low-scale gaugino mediation predicts that gauginos are significantly heavier than scalar superpartners. In order of increasing mass the lightest superpartners are the gravitino, right-handed sleptons and left-handed sleptons (no light neutralino!). This implies that squark decay chains pass through one or more sleptons and typical final states from squark and gluino production at the LHC include multiple leptons. In addition, left-handed staus have large branching fractions into right-handed staus and the Higgs. As an example, we compute the spectrum of low-scale deconstructed gaugino mediation. In this model gauginos acquire masses at tree level at 5 TeV while scalar masses are generated radiatively from the gaugino masses.

References in corpus (6)

• Particle physics catalysis of thermal Big Bang Nucleosynthesis
• Flavor in Supersymmetry with an Extended R-symmetry
• Supersymmetry with a Chargino NLSP and Gravitino LSP
• Collider signatures of gravitino dark matter with a sneutrino NLSP
• Dark Matter from Gaugino Mediation
• Soft Leptogenesis in Warped Extra Dimensions

Cited by in corpus (6)

• SUSY models under siege: LHC constraints and electroweak fine-tuning
• Searches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at $\sqrt{s}$ = 8 TeV
• Direct Gaugino Mediation
• Leptogenic Supersymmetry
• Testing the gaugino AMSB model at the Tevatron via slepton pair production
• Confronting Higgs couplings from D-term extensions and Natural SUSY at the LHC and ILC