1081 articles – 5291 references  [version française]
HAL: in2p3-00731289, version 1

Detailed view  Export this paper
16th International Conference in Quantum ChromoDynamics (QCD12), Montpellier : France (2012)
Complementarity of Bs->mu+mu- and B-> K l+l- in New Physics searches
D. Becirevic1, N. Kosnik2, 3, F. Mescia, E. Schneider4
(2013)

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.
1:  LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
2:  J. Stefan Institute
3:  LAL - Laboratoire de l'Accélérateur Linéaire
4:  University of Trento [Trento]
Groupe Théorie
Physics/High Energy Physics - Experiment

Physics/High Energy Physics - Lattice

Physics/High Energy Physics - Phenomenology
Fulltext link: 
http://fr.arXiv.org/abs/1209.0969