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.
@article{arxiv.0809.3176,
title = {Sneutrino LSPs in R-parity violating minimal supergravity models},
author = {Markus A. Bernhardt and Siba Prasad Das and Herbi K. Dreiner and Sebastian Grab},
journal= {arXiv preprint arXiv:0809.3176},
year = {2009}
}
Comments
3 pages, 3 figures, to appear in the proceedings of SUSY08, Seoul, Korea