Observation of B(s)(0) â J/ψf(2)'(1525) in J/ψK+ K- final states.
Phys Rev Lett
; 108(15): 151801, 2012 Apr 13.
Article
em En
| MEDLINE
| ID: mdl-22587241
ABSTRACT
The decay B(s)(0) â 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/ψÏ 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) â J/ψf(2)'(1525))/B(B(s)(0) â J/ψÏ) = (26.4 ± 2.7 ± 2.4)%.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article