Test of lepton flavour violation at LHC

Details Test of lepton flavour violation at LHC Test of lepton flavour violation at LHC

2005-10-06

arxiv.org/abs/hep-ph/0510074v3

Eur.Phys.J.C46:783-789,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages

Scientific paper

10.1140/epjc/s2006-02528-4

We study lepton flavour violating decays of neutralinos and sleptons within the Minimal Supersymmetric Standard Model, assuming two and three generation mixings in the slepton sector. We take into account the most recent bounds on flavour violating rare lepton decays. Taking the SPS1a' scenario as an example, we show that some of the lepton flavour violating branching ratios of neutralinos and sleptons can be sizable (~ 5-10%). We study the impact of the lepton flavour violating neutralino and slepton decays on the di-lepton mass distributions measured at LHC. We find that they can result in novel and characteristic edge structures in the distributions. In particular, double-edge structures can appear in the e tau and mu tau mass spectra if ~tau_1 is the lightest slepton. The appearance of these remarkable structures provides a powerful test of supersymmetric lepton flavour violation at LHC.

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