Abstract
The angular distributions of the rare decays B+ -> K+mu(+)mu(-) and B-0 -> K-S(0)mu(+)mu(-) are studied with data corresponding to 3 fb(-1) of integrated luminosity, collected in proton-proton collisions at 7 and 8 TeV centre-of-mass energies with the LHCb detector. The angular distribution is described by two parameters, F-H and the forward-backward asymmetry of the dimuon system A(FB), which are determined in bins of the dimuon mass squared. The parameter F-H is a measure of the contribution from (pseudo)scalar and tensor amplitudes to the decay width. The measurements of A(FB) and F-H reported here are the most precise to date and are compatible with predictions from the Standard Model.
Original language | English |
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Article number | 082 |
Number of pages | 25 |
Journal | Journal of High Energy Physics |
Issue number | 5 |
DOIs | |
Publication status | Published - 19 May 2014 |
Externally published | Yes |
Keywords
- Rare decay
- B physics
- Flavour Changing Neutral Currents
- Flavor physics
- Hadron-Hadron Scattering