Evidence for X(3872)--> psi (2S) gamma in B±-->X(3872)K± Decays and a Study of B-->cc-bar gamma K
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Aubert-2009-Evidence for X(3872).pdf
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Author(s)
Dujmic, Denis
Yamamoto, R. K.
Sciolla, Gabriella
Zhao, M.
Fisher, Peter H
Spitznagel, Michael A
Taylor, Frank E
Cowan, Ray F
Alternative Title
Evidence for X(3872)→ψ(2S)γ in B±→X(3872)K± Decays and a Study of B→cc̅ γK
Date Issued
March 2009
Journal
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
Abstract
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].
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.102.132001
