Non-Neutralino LSPs in mSUGRA with R-Parity Violation and their Signatures at Hadron Colliders

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• Sebastian Grab (Bonn)
• Friday 31 October 2008, 16:00-17:00
• Seminar Room B, Rutherford Building, Cavendish Laboratory.

If you have a question about this talk, please contact Steve Chun Hay Kom.

The most widely studied supersymmetric scenario is the minimal supersymmetric standard model (MSSM). In this model, lepton- and baryon- number violating interactions are suppressed by a discrete symmetry, R-Parity or Proton Hexality, to keep the proton stable. However it is sufficient to forbid only lepton- or baryon-number violation. We thus extend minimal supergravity (mSUGRA) models by adding an R-Parity violating operator at the unification scale.

This can change the supersymmetric spectrum leading on the one hand to a sneutrino, smuon or squark as the lightest supersymmetric particle (LSP). On the other hand, a wide parameter region is reopened, where the lightest stau is the LSP . We investigate in detail the conditions leading to non-neutralino LSP scenarios. We present typical Tevatron and LHC signatures. Promising signatures are multi-lepton final states, high-pT muons and jets, four jet events and like sign muon events.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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