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http://hdl.handle.net/2445/131415
Title: | Search for B+ → X(3872)K+, X(3872) → J/ψγ |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 3-Oct-2006 |
Publisher: | American Physical Society |
Abstract: | In a study of B + → J / ψ γ K + decays, we find evidence for the radiative decay X ( 3872 ) → J / ψ γ with a statistical significance of 3.4 σ . We measure the product of branching fractions B ( B + → X ( 3872 ) K + ) ⋅ B ( X ( 3872 ) → J / ψ γ ) = ( 3.3 ± 1.0 ± 0.3 ) × 10 − 6 , where the uncertainties are statistical and systematic, respectively. We also measure the branching fraction B ( B + → χ c 1 K + ) = ( 4.9 ± 0.2 ± 0.4 ) × 10 − 4 . These results are obtained from ( 287 ± 3 ) million B ¯¯¯ B decays collected at the Υ ( 4 S ) resonance with the BABAR detector at the PEP-II B Factory at SLAC. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.071101 |
It is part of: | Physical Review D, 2006, vol. 74, num. 7, p. 071101(R) |
URI: | http://hdl.handle.net/2445/131415 |
Related resource: | https://doi.org/10.1103/PhysRevD.74.071101 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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