arXiv 0809.31762008-09-18hep-ph

Sneutrino LSPs in R-parity violating minimal supergravity models

Markus A. Bernhardt, Siba Prasad Das, Herbi K. Dreiner, Sebastian Grab

备注：: 3 pages, 3 figures, to appear in the proceedings of SUSY08, Seoul, Korea
发表信息：: AIP Conf.Proc.1078:306-308,2009
DOI：: 10.1063/1.3051942

英文摘要：

We consider the minimal supergravity model (mSUGRA) with one additional R-parity violating operator at the GUT scale. The superparticles mass spectra at the weak scale are generally altered due to the presence of the R-parity violating coupling in the renormalization group equations. We show that a lepton number violating coupling at the GUT scale can lead to a sneutrino as the lightest supersymmetric particle (LSP) in a large region of parameter space consistent with the muon anomalous magnetic moment and other precision measurements. We also give characteristic collider signatures at the LHC.

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