Angular analysis of charged and neutral B → Kμ[superscript +]μ[superscript −] decays
Author(s)Counts, Ian Thomas Hunt; Ilten, Philip James; Williams, Michael
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The angular distributions of the rare decays B [superscript +] → K [superscript +] μ [superscript +] μ [superscript −] and B[superscript 0] → K[0 over S]μ[superscript +]μ[superscript −] are studied with data corresponding to 3 fb[superscript −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 [subscript H] and the forward-backward asymmetry of the dimuon system A [subscript FB], which are determined in bins of the dimuon mass squared. The parameter F [subscript H] is a measure of the contribution from (pseudo)scalar and tensor amplitudes to the decay width. The measurements of A [subscript FB] and F [subscript H] reported here are the most precise to date and are compatible with predictions from the Standard Model.
DepartmentMassachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal of High Energy Physics
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, et al. “Angular analysis of charged and neutral B → Kμ[superscript +]μ[superscript −] decays.” J. High Energ. Phys. 2014, no. 5 (May 2014). © CERN, for the benefit of the LHCb Collaboration
Final published version