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Observation of B(s)(0) → J/ψf(2)'(1525) in J/ψK+ K- final states.

Abstract:
The decay B(s)(0) → J/ψK+ K- is investigated using 0.16  fb(-1) of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψϕ channel is well known, final states at higher K+ K- masses have not previously been studied. In the K+ K- mass spectrum we observe a significant signal in the f(2)'(1525) region as well as a nonresonant component. After subtracting the nonresonant component, we find B(B(s)(0) → J/ψf(2)'(1525))/B(B(s)(0) → J/ψϕ) = (26.4 ± 2.7 ± 2.4)%.

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Journal:
Physical review letters
Volume:
108
Issue:
15
Pages:
151801
Publication date:
2012-04-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:5cd03761-58a8-4dab-b349-b31a6933f01d
Source identifiers:
325302
Local pid:
pubs:325302
Language:
English
Keywords:

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