Journal
PHYSICAL REVIEW D
Volume 75, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.75.051102
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Funding
- Science and Technology Facilities Council [PP/E000444/1] Funding Source: researchfish
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We search for the decays B-->phi K-gamma and (B) over bar (0)->phi(K) over bar (0)gamma in a data sample of 228x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the BABAR detector. We measure the branching fraction B(B-->phi K-gamma)=(3.5 +/- 0.6 +/- 0.4)x10(-6) and set an upper limit B((B) over bar (0)->phi($) over bar (0)gamma)< 2.7x10(-6) at the 90% confidence level. We also measure the direct CP asymmetry in B-->phi K-gamma, A(CP)=(-26 +/- 14 +/- 5)%. The uncertainties are statistical and systematic, respectively.
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