Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-12-07
JHEP06:042, 2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, 5 figures. v2: added discussion on backgrounds, added references, version to be published on JHEP
Scientific paper
10.1007/JHEP06(2010)042
Precise measurements of slepton mass-splittings might represent a powerful tool to probe supersymmetric (SUSY) lepton flavour violation (LFV) at the LHC. We point out that mass-splittings of the first two generations of sleptons are especially sensitive to LFV effects involving $\tau-\mu$ transitions. If these mass-splittings are LFV induced, high-energy LFV processes like the neutralino decay ${\nt}_2\to\nt_1\tau^{\pm}\mu^{\mp}$ as well as low-energy LFV processes like $\tau\to\mu\gamma$ are unavoidable. We show that precise slepton mass-splitting measurements and LFV processes both at the high- and low-energy scales are highly complementary in the attempt to (partially) reconstruct the flavour sector of the SUSY model at work. The present study represents another proof of the synergy and interplay existing between the LHC, i.e. the {\em high-energy frontier}, and high-precision low-energy experiments, i.e. the {\em high-intensity frontier}.
Buras Andrzej J.
Calibbi Lorenzo
Paradisi Paride
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