Evidence for X(3872)--> psi (2S) gamma in B±-->X(3872)K± Decays and a Study of B-->cc-bar gamma K
Author(s)
Dujmic, Denis; Yamamoto, R. K.; Sciolla, Gabriella; Zhao, M.; Fisher, Peter H; Spitznagel, Michael A; Taylor, Frank E; Cowan, Ray F; ... Show more Show less
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Alternative title
Evidence for X(3872)→ψ(2S)γ in B±→X(3872)K± Decays and a Study of B→cc̅ γK
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In a search for B→cc̅ γK decays with the BABAR detector, where cc̅ includes J/ψ and ψ(2S), and K includes K±, K[supscript S] [superscript 0], and K*(892), we find evidence for X(3872)→J/ψγ and X(3872)→ψ(2S)γ with 3.6σ and 3.5σ significance, respectively. We measure the product of branching fractions B(B±→X(3872)K±)×B(X(3872)→J/ψγ)=[2.8±0.8(stat)±0.1(syst)]×10[superscript -6] and B(B±→X(3872)K±)×B(X(3872)→ψ(2S)γ)=[9.5±2.7(stat)±0.6(syst)]×10[superscript -6].
Date issued
2009-03Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review Letters
Publisher
American Physical Society
Citation
The BABAR Collaboration et al. “Evidence for X(3872)--> psi (2S) gamma in B±-->X(3872)K± Decays and a Study of B-->cc-bar gamma K.” Physical Review Letters 102.13 (2009): 132001. © 2009 American Physical Society.
Version: Final published version
ISSN
0031-9007