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http://hdl.handle.net/2445/131432
Title: | Measurement of B decays to ϕKγ |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 14-Mar-2007 |
Publisher: | American Physical Society |
Abstract: | We search for the decays B − → ϕ K − γ and ¯¯¯ B 0 → ϕ ¯¯¯¯ K 0 γ in a data sample of 228 × 10 6 B ¯¯¯ B pairs collected at the Υ ( 4 S ) resonance with the BABAR detector. We measure the branching fraction B ( B − → ϕ K − γ ) = ( 3.5 ± 0.6 ± 0.4 ) × 10 − 6 and set an upper limit B ( ¯¯¯ B 0 → ϕ ¯¯¯¯ K 0 γ ) < 2.7 × 10 − 6 at the 90% confidence level. We also measure the direct C P asymmetry in B − → ϕ K − γ , A C P = ( − 26 ± 14 ± 5 ) % . The uncertainties are statistical and systematic, respectively. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.75.051102 |
It is part of: | Physical Review D, 2007, vol. 75, num. 5, p. 051102(R) |
URI: | http://hdl.handle.net/2445/131432 |
Related resource: | https://doi.org/10.1103/PhysRevD.75.051102 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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