Right-Chiral Sneutrino LSP in mSUGRA: Event characteristics of NLSP at the LHC

Details Right-Chiral Sneutrino LSP in mSUGRA: Event characteristics of NLSP at the LHC Right-Chiral Sneutrino LSP in mSUGRA: Event characteristics of NLSP at the LHC

2007-10-12

arxiv.org/abs/0710.2508v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Submitted for the SUSY07 proceedings. 4 pages, Latex, 7 eps figures

Scientific paper

We study a supersymmetric scenario where the lighter tau-sneutrino is the lightest supersymmetric particle, while the lighter stau-state is the next lightest. Such a scenario can be motivated within the framework of minimal supergravity, with just the addition of a right-chiral neutrino superfield. Such a spectrum leads to rather unusual signals of supersymmetry, showing stable tracks of the stau in the muon chambers. We study the event characteristics of the long-lived staus at the LHC and demonstrate that the stau tracks can be distinguished from the muonic ones through proper kinematic cuts which also enable one to remove all standard model backgrounds.

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