Simplified Supersymmetry with Sneutrino LSP at 8 TeV LHC

Abstract

The current searches of supersymmetry (SUSY) are based on the neutralino lightest sparticle (LSP). In this article we instead focus on SUSY with sneutrino LSP. It is well motivated in many contexts, especially in which sneutrino services as a dark matter candidate. We first develop a simplified model, which contains the stop, chagino/neutralino and sneutrino, to describe the LHC phenomenologies of a large class of models with sneutrino LSP. Then we investigate bounds on the model using the SUSY searches at the 8 TeV LHC. Strong exclusion limits are derived, e.g., masses of stop and chargino can be excluded up to about 900 GeV and 550 GeV, respectively. We also propose optimizations for some searches without turning to higher energy and luminosity.

26 pages, 8 figures,Minor corrections,References added

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Cited by in corpus (13)

• Neutrinos and Collider Physics
• A Bayesian analysis of sneutrino DM in the NMSSM with Type-I seesaw mechanism
• Constraints on sneutrino dark matter from LHC Run 1
• Investigating light NMSSM pseudoscalar states with boosted ditau tagging
• Right Sneutrino Dark Matter and a Monochromatic Photon Line
• A light sneutrino rescues the light stop
• Monochromatic neutrino lines from sneutrino dark matter
• Natural SUSY at LHC with Right-Sneutrino LSP
• Uncover Compressed Supersymmetry via Boosted Bosons from the Heavier Stop/Sbottom
• Gauge Mediation at LHC: status and prospects
• Phenomenology in supersymmetric neutrinophilic Higgs model with sneutrino dark matter
• Supersymmetry with a Heavy Lightest Supersymmetric Particle
• Reinterpretation of ATLAS 8 TeV searches for Natural SUSY with a $R$-Sneutrino LSP