Observation of B[subscript c][superscript +]→J/ψD[superscript (*)]K[superscript (*)] decays
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PhysRevD.95.032005.pdf
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Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Ajaltouni, Z.
Akar, S.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Alkhazov, G.
Alternative Title
Observation of B + c → J / ψ D ( * ) K ( * ) decays
Date Issued
February 2017
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaij, R. et al. “Observation of B[subscript c][superscript +]→ J/ψD[superscript ( * )]K[superscript ( * )] Decays.” Physical Review D 95, 032005 (2017 February): 1-12 © 2017 CERN for the LHCb Collaboration
Version
Final published version
Abstract
A search for the decays B[subscript c][superscript +]→J/ψD[superscript (*)0]K[superscript +] and B[subscript c][superscript +]→J/ψD[superscript (*)+]K[superscript *0] is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of 3 fb[superscript -1]. The decays B[subscript c][superscript +]→J/ψD[superscript 0]K[superscript +] and B[subscript c][superscript +]→J/ψD[superscript *0]K[superscript +] are observed for the first time, while first evidence is reported for the B[subscript c][superscript +]→J/ψD[superscript *+]K[superscript *0] and B[subscript c][superscript +]→J/ψD[superscript +]K[superscript *0] decays. The branching fractions of these decays are determined relative to the B[subscript c][superscript +]→J/ψπ[superscript +] decay. The B[subscript c][superscript +] mass is measured, using the J/ψD[superscript 0]K[superscript +] final state, to be 6274.28±1.40(stat)±0.32(syst) MeV/c[superscript 2]. This is the most precise single measurement of the B[subscript c][superscript +] mass to date.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevD.95.032005
