Journal
PHYSICAL REVIEW LETTERS
Volume 103, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.211802
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- DOE
- NSF (U. S.)
- NSERC (Canada)
- CEA
- CNRS-IN2P3 (France)
- BMBF
- 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
- STFC [ST/F008015/1, ST/H000992/1, ST/H001166/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H001166/1, ST/F008015/1, PP/E000444/1, ST/H000992/1] Funding Source: researchfish
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We present an analysis of the decays B-0 -> K-*0(892)gamma and B+-> K*+(892)gamma using a sample of about 383x10(6) BB events collected with the BABAR detector at the PEP-II asymmetric energy B factory. We measure the branching fractions B(B-0 -> K-*0 gamma)=(4.47 +/- 0.10 +/- 0.16)x10(-5) and B(B+-> K*+gamma)=(4.22 +/- 0.14 +/- 0.16)x10(-5). We constrain the direct CP asymmetry to be -0.033 < A(B -> K-*gamma)< 0.028 and the isospin asymmetry to be 0.017 < 0.116, where the limits are determined by the 90% confidence interval and include both the statistical and systematic uncertainties.
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