Observation of (B)over-bar(s)(0) -> J/psi f ''(2)(1525) in J/psi K(+)K(-)Final States

R. Aaij*, C.A. Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, G. Alkhazov, P.A. Cartelle, A.A. Alves, S. Amato, Y. Amhis, J. Anderson, R.B. Appleby, O.A. Gutierrez, F. Archilli, L. ArrabitoA. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J.J. Back, D.S. Bailey, V. Balagura, W. Baldini, R.J. Barlow, C. Barschel, S. Barsuk, W. Barter, A. Bates, C. Bauer, T. Bauer, A. Bay, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, G. Bencivenni, S. Benson, J. Benton, R. Bernet, M.O. Bettler, M. van Beuzekom, A. Bien, J. van den Brand

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The decay (B) over bar (0)(s) (->) J/psi K+K- is investigated using 0:16 fb(-)1 of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/00 psi phi 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) over bar (0)(s) (->) J/psi f''(2)(1525))/(B)over bar>(0)(s) (->) J/psi phi)=(26.4 +/- 2.7 +/- 2.4)%.
Original languageEnglish
Article number151801
Number of pages7
JournalPhysical Review Letters
Volume108
Issue number15
DOIs
Publication statusPublished - 9 Apr 2012
Externally publishedYes

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