Search for the rare decays B[superscript 0] → J/ψγ and B[0 over s] → J/ψγ
Name
PhysRevD.92.112002.pdf
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278.92 KB
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Author(s)
Aaij, R.
Abellán Beteta, C.
Adeva, B.
Adinolfi, M.
Affolder, A.
Ajaltouni, Z.
Akar, S.
Albrecht, J.
Alessio, F.
Alexander, M.
Date Issued
December 2015
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaij, R., et al. "Search for the rare decays B[superscript 0] → J/ψγ and B[0 over s] → J/ψγ." Phys. Rev. D 92, 112002 (December 2015). © 2015 CERN, for the LHCb Collaboration
Version
Final published version
Abstract
A search for the rare decay of a B[superscript 0] or B[0 over s] meson into the final state J/ψγ is performed, using data collected by the LHCb experiment in pp collisions at √s = 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb[superscript -1]. The observed number of signal candidates is consistent with a background-only hypothesis. Branching fraction values larger than 1.5×10[superscript -6] for the B[superscript 0] → J/ψγ decay mode are excluded at 90% confidence level. For the B[0 over s] → J/ψγ decay mode, branching fraction values larger than 7.3×10[superscript -6] are excluded at 90% confidence level; this is the first branching fraction limit for this decay.
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.92.112002
