Differential branching fractions and isospin asymmetries of B → K[superscript (*)]μ[superscript +]μ[superscript −] decays
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Counts, Ian Thomas Hunt; Williams, Michael; Ilten, Philip J![Thumbnail](/bitstream/handle/1721.1/89436/Aaij-2014-Differential%20branchi.pdf.jpg?sequence=4&isAllowed=y)
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The isospin asymmetries of B → Kμ [superscript +] μ [superscript −] and B → K [superscript *] μ [superscript +] μ [superscript −] decays and the partial branching fractions of the B [superscript 0] → K [superscript 0] μ [superscript +] μ [superscript −], B [superscript +] → K [superscript +] μ [superscript +] μ [superscript −] and B [superscript +] → K [superscript *+] μ [superscript +] μ [superscript −] decays are measured as functions of the dimuon mass squared, q [superscript 2]. The data used correspond to an integrated luminosity of 3 fb[superscript −1] from proton-proton collisions collected with the LHCb detector at centre-of-mass energies of 7 TeV and 8 TeV in 2011 and 2012, respectively. The isospin asymmetries are both consistent with the Standard Model expectations. The three measured branching fractions favour lower values than their respective theoretical predictions, however they are all individually consistent with the Standard Model.
Date issued
2014-06Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, et al. “Differential branching fractions and isospin asymmetries of B → K[superscript (*)]μ[superscript +]μ[superscript −] decays.” J. High Energ. Phys. 2014, no. 6 (June 2014). © CERN, for the benefit of the LHCb Collaboration
Version: Final published version
ISSN
1029-8479
1126-6708