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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
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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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].
Date issued
2009-03
URI
http://hdl.handle.net/1721.1/51831
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
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
ISSN
0031-9007

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