Observation of the decay Bs0→χc2K+K− in the ϕ mass region
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Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Aidala, C. A
Ajaltouni, Z.
Akar, S.
Albicocco, P.
Albrecht, J.
Alessio, F.
Alexander, M.
Alternative Title
Observation of the decay [line over B][subscript 0 under superscript 0]→χ[subscript c2]K[superscript +]K[superscript -] in the ϕ mass region
Date Issued
August 2018
Journal
Journal of high energy physics
Publisher
Springer Berlin Heidelberg
Citation
LHCb collaboration (Aaij, R., et al.), "Observation of the decay Bs0→χc2K+K− in the ϕ mass region." Journal of high energy physics 2018 (August 2018): no. 191 doi 10.1007/JHEP08(2018)191 ©2018 Author(s)
Version
Final published version
Abstract
The [line over B][subscript 0 under superscript 0]→χ[subscript c2]K[superscript +]K[superscript -] decay mode is observed and its branching fraction relative to the corresponding χc1 decay mode, in a ±15 MeV/c2 window around the φ mass, is found to be [mathematical equation; see resource] where the first uncertainty is statistical, the second systematic and the third due to the knowledge of the branching fractions of radiative χ[subscript c] decays. The decay mode [line over B][subscript 0 under superscript 0]→χ[subscript c2]K[superscript +]K[superscript -] allows the B[subscript s under superscript 0] mass to be measured as [mathematical equation; see resource] where the first uncertainty is statistical and the second systematic. A combination of this result with other LHCb determinations of the B[subscript s under superscript 0] mass is made. ©2018 keywords: flavor physics; B physics; Hadron-Hadron scattering experiments
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
10.1007/JHEP08(2018)191
