Abstract
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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