$\tau$-Flavour Violation at the LHC

Abstract

We study the conditions required for ${\chi }_2\to \chi +{\tau }^{\pm }{\mu }^{\mp }$ decays to yield observable tau flavour violation at the LHC, for cosmologically interesting values of the neutralino relic density. These condition can be achieved in the framework of a SU(5) model with a see-saw mechanism that allows a possible coexistence of a LHC signal a low prediction for radiative LFV decays.

Comments: 7 pages, 5 figures, Prepared for the proceedings of the workshop: "LC09: $e^{+}{e}^{-}$ Physics at the TeV Scale and the Dark Matter Connection", 21-24 September 2009, Perugia, Italy