R-parity violation in split supersymmetry

Details R-parity violation in split supersymmetry R-parity violation in split supersymmetry

2004-08-26

arxiv.org/abs/hep-ph/0408296v3

Phys.Lett. B606 (2005) 384-390

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex 11 pages, 3 figures, uses axodraw. Final version to appear in Phys.Lett.B. Added references and comments. Title changed

Scientific paper

10.1016/j.physletb.2004.12.014

In the recently proposed `split supersymmetry' scenario, the squark and slepton masses are allowed to be at a high scale while the gauginos and Higgsinos are within a TeV. We show that in a theory with broken R-parity, the parameter space of such a scenario allows a situation where the lightest neutralino is still stable on the cosmological scale and can be a dark matter candidate. We also separate the cases where (a) it may be invisible but not a dark matter candidate, or (b) it may decay showing a displaced vertex. It is also emphasized how the constraint on the simultaneous violation of baryon and lepton numbers gets relaxed in this scenario.

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