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First observation of the decay Bc+to → J/ψ K+

Abstract:

The decay Bc+to → J/ψ K+ is observed for the first time using a data sample, corresponding to an integrated luminosity of 1.0 fb-1, collected by the LHCb experiment in pp collisions at a centre-of-mass energy of 7 TeV. A yield of 46 ± 12 events is reported, with a significance of 5.0 standard deviations. The ratio of the branching fraction of Bc+to → J/ψ K+ to that of Bc+to → J/ψ K+ is measured to be 0.069 ± 0.019 ± 0.005, where the first uncertainty is statistical and the second is systemati...

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Publisher copy:
10.1007/JHEP09(2013)075

Authors


Beteta, CA More by this author
Adinolfi, M More by this author
Adrover, C More by this author
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Journal:
Journal of High Energy Physics
Volume:
2013
Issue:
9
Publication date:
2013
DOI:
EISSN:
1029-8479
ISSN:
1126-6708
URN:
uuid:f5f48829-db34-45f4-8696-6e1f715d711c
Source identifiers:
431425
Local pid:
pubs:431425

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