MSSM Predictions for $B^0 \to μ^+ μ^-$ at Tevatron and LHC

Details MSSM Predictions for $B^0 \to μ^+ μ^-$ at Tevatron and LHC MSSM Predictions for $B^0 \to μ^+ μ^-$ at Tevatron and LHC

2009-11-17

arxiv.org/abs/0911.3339v1

Acta Phys.Polon.Supp.3:87-96,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

Presented at the FlaviaNet Topical Workshop, 23-27 July 2009, Kazimierz, Poland, to appear in the Proceedings

Scientific paper

During the last few years the Tevatron has improved the bounds on rare $B$-meson decays into two leptons. Sensitivity to this decay is also one of the benchmark goals for LHCb performance. We compute the complete 1-loop MSSM contribution to $B^0_{s,d}\to \mu^+\^-mu$ and study the predictions for arbitrary flavour mixing parameters. We discuss the possibility of both enhancing and suppressing the branching ratios relative to their SM expectations. We find that there are ``cancellation regions'' in parameter space where the branching ratio is suppressed well below the SM expectation, making it effectively invisible to the LHC.

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