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Complementarity of Bs->mu+mu- and B-> K l+l- in New Physics searches

Abstract : This year, LHC provided a very stringent bound on Br(Bs->mu+mu-), bringing it closer to the value predicted by the Standard Model (SM). Bs->mu+mu- was believed to be the golden mode at LHCb to find SUSY because a large enhancement was expected in the regime of moderate and large values of tanb. Other scenarios are still possible and a correlation with other decay channels is needed. We show that a complementary information on New Physics (NP) can be obtained model-indepedently from the B-> K l+l- decay mode. We provide a prediction Br(B-> K l+l-) based on the first lattice QCD results for all three relevant form factors, f0(q^2), f+(q^2) and fT(q^2). We were then able to provide the model-independent bounds on the complex couplings to scalar and pseudoscalr operators in the b->s sector.
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Contributor : Sabine Starita <>
Submitted on : Wednesday, September 12, 2012 - 3:05:49 PM
Last modification on : Wednesday, September 16, 2020 - 5:40:27 PM

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D. Becirevic, N. Kosnik, F. Mescia, E. Schneider. Complementarity of Bs->mu+mu- and B-> K l+l- in New Physics searches. 16th International Conference in Quantum ChromoDynamics (QCD12), Jul 2012, Montpellier, France. pp.177-180, ⟨10.1016/j.nuclphysbps.2012.12.009⟩. ⟨in2p3-00731289⟩



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