Differential branching fractions and isospin asymmetries of B → K[superscript (*)]μ[superscript +]μ[superscript −] decays
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Aaij-2014-Differential branchi.pdf
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Author(s)
Counts, Ian Thomas Hunt
Williams, Michael
Ilten, Philip J
Date Issued
June 2014
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/jhep06(2014)133
