2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/218026We 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.3 pages, 3 figures, to appear in the proceedings of SUSY08, Seoul, KoreaHigh Energy Physics - Phenomenologytext