(2009) Evidence for X(3872)->psi(2S)gamma in B-+/--> X(3872)K-+/- decays and a study of B -> cc gamma K. Physical Review Letters, Vol.102 (No.13). article no. 132001. doi:10.1103/PhysRevLett.102.132001 ISSN 0031-9007.
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Abstract
In a search for B -> cc gamma K decays with the BABAR detector, where cc> includes J/psi and psi(2S), and K includes K-+/-, K-S(0), and K-*(892), we find evidence for X(3872)-> J/psi gamma and X(3872)->psi(2S)gamma with 3.6 sigma and 3.5 sigma significance, respectively. We measure the product of branching fractions B(B-+/--> X(3872)K-+/-)xB(X(3872)-> J/psi gamma)=[2.8 +/- 0.8(stat)+/- 0.1(syst)]x10(-6) and B(B-+/--> X(3872)K-+/-)xB(X(3872)->psi(2S)gamma)=[9.5 +/- 2.7(stat)+/- 0.6(syst)]x10(-6).
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics |
| Journal or Publication Title: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Official Date: | 3 April 2009 |
| Dates: | Date Event 3 April 2009 Published |
| Volume: | Vol.102 |
| Number: | No.13 |
| Number of Pages: | 7 |
| Page Range: | article no. 132001 |
| DOI: | 10.1103/PhysRevLett.102.132001 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Funder: | DOE, NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), STFC (United Kingdom), Marie Curie EIF (European Union), A. P. Sloan Foundation |
| URI: | https://wrap.warwick.ac.uk/28118/ |
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