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Evidence for X(3872)->psi(2S)gamma in B-+/--> X(3872)K-+/- Decays and a Study of B -> cc gamma K

Abstract:
In a search for B→cc̄γK decays with the BABAR detector, where cc̄ includes J/ψ and ψ(2S), and K includes K±, KS0, 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)]×10-6 and B(B±→X(3872)K±) ×B(X(3872)→ψ(2S)γ)=[9.5±2.7(stat)±0.6(syst)] ×10-6. © 2009 The American Physical Society.
Publication status:
Published

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Authors


Karyotakis, Y More by this author
Poireau, V More by this author
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Journal:
PHYSICAL REVIEW LETTERS
Volume:
102
Issue:
13
Publication date:
2009-04-03
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:55cde570-efa3-45be-985a-56a75a521412
Source identifiers:
211235
Local pid:
pubs:211235
Language:
English

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