Journal article

### 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...

### Access Document

Publisher copy:
10.1007/JHEP09(2013)075

### Authors

Journal:
Journal of High Energy Physics
Volume:
2013
Issue:
9
Publication date:
2013-01-01
DOI:
EISSN:
1029-8479
ISSN:
1126-6708
Source identifiers:
431425
Language:
English
Keywords:
Pubs id:
pubs:431425
UUID:
uuid:f5f48829-db34-45f4-8696-6e1f715d711c
Local pid:
pubs:431425
Deposit date:
2013-11-16