The decay B(s)(0) J/psiK+ K- is investigated using 0.16fb(-1) of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/psiϕ 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/psif(2)'(1525))/B(B(s)(0) J/psiϕ) = (26.4 ± 2.7 ± 2.4)%.

Aaij, R., Carboni, G., Messi, R., Santovetti, E., Ii, (2012). Observation of B(s)(0) J/psif(2)'(1525) in J/psiK+ K- final states. PHYSICAL REVIEW LETTERS, 108(15), 151801-151801.

Observation of B(s)(0) J/psif(2)'(1525) in J/psiK+ K- final states

CARBONI, GIOVANNI;MESSI, ROBERTO;SANTOVETTI, EMANUELE;
2012-01-01

Abstract

The decay B(s)(0) J/psiK+ K- is investigated using 0.16fb(-1) of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/psiϕ 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/psif(2)'(1525))/B(B(s)(0) J/psiϕ) = (26.4 ± 2.7 ± 2.4)%.
2012
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Aaij, R., Carboni, G., Messi, R., Santovetti, E., Ii, (2012). Observation of B(s)(0) J/psif(2)'(1525) in J/psiK+ K- final states. PHYSICAL REVIEW LETTERS, 108(15), 151801-151801.
Aaij, R; Carboni, G; Messi, R; Santovetti, E; Ii,
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/135312
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