{tau}-tilde{sub 1} lightest supersymmetric particle phenomenology: Two- versus four-body decay modes and resonant single slepton production at the LHC as an example
- Bethe Center for Theoretical Physics and Physikalisches Institut der Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany)
We investigate B{sub 3} minimal supergravity models, where the lightest stau {tau}-tilde{sub 1} is the lightest supersymmetric particle. B{sub 3} models allow for lepton number and R-parity violation; the lightest supersymmetric particle can thus decay. We assume one nonzero B{sub 3} coupling {lambda}{sub ijk}{sup '} at M{sub GUT}, which generates further B{sub 3} couplings at M{sub Z}. We study the renormalization group equations and give numerical examples. The new couplings lead to additional {tau}-tilde{sub 1} decays, providing distinct collider signatures. We classify the {tau}-tilde{sub 1} decays and describe their dependence on the minimal supergravity parameters. We exploit our results for single slepton production at the LHC. As an explicit numerical example, we investigate single-smuon production, focussing on like-sign dimuons in the final state. Also considered are final states with three or four muons.
- OSTI ID:
- 21254748
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 79, Issue 1; Other Information: DOI: 10.1103/PhysRevD.79.016002; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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