The three-leptons signature from resonant sneutrino production at the LHC

Abstract

The resonant production of sneutrinos at the LHC via the R-parity violating couplings ${\text{l}}_{ijk}^{\prime }{L}_i{Q}_j{D}_k^c$ is studied through its three-leptons signature. A detailed particle level study of signal and background is performed using a fast simulation of the ATLAS detector. Through the full reconstruction of the cascade decay, a model-independent and precise measurement of the masses of the involved sparticles can be performed. Besides, this signature can be detected in a large part of the SUSY parameter space and for wide ranges of values of several ${\text{l}}_{ijk}^{\prime }$ coupling constants.

Comments: 7 pages, 6 figures, Latex file. Proceedings of the Workshop `Physics at TeV Colliders', 8-18 June, 1999, Les Houches, France