Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 15, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.151801
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- STFC [ST/F007094/1, ST/I002839/1, ST/K00140X/1, ST/K000705/1, ST/J004820/1, ST/K000616/1, ST/H001085/2, ST/H001093/1, ST/L001195/1, ST/F008015/1, ST/L001225/1, PP/E000355/1, ST/G502412/1, PP/E002722/1, ST/K001361/1, LHCb Upgrades, ST/I505572/1, LHCb, ST/M001431/1, ST/J005614/1, ST/H001093/2, ST/K004646/1, ST/K00073X/1, ST/G005974/1, PP/E000347/1, ST/H00100X/2, ST/L001144/1, ST/H00100X/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/L001195/1, LHCb Upgrades, ST/G005974/1, ST/K001310/1 ATLAS, ST/K001418/1, ST/F008015/1, ST/H001085/2, ST/K001310/1 LHCb, ST/H00100X/1, PP/E000355/1, ST/K001310/1 ATLAS Upgrades, GRIDPP, ST/K001310/1, ST/H00100X/2, ST/K001310/1 LHCb Upgrades, ST/K000705/1] Funding Source: researchfish
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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)%.
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