PUB-09/010 Measurement of Branching Fractions and CP and Isospin Asymmetries in B -> K*(892) gamma Decays |
Doc Type |
Journal Papers |
Record Created |
March 26, 2009 |
SLAC-PUB |
Preprint # |
0906.2177 [hep-ex] |
Accession Code |
LF12258 |
Abstract |
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We present an analysis of the decays B0 -> K*0 gamma and B+ -> K*+ gamma using a sample of 383 million BBbar events collected with the BaBar detector at the PEP2 asymmetric energy B factory. We measure the branching fractions BF[B0 -> K*0 Gamma] = 4.47 +/- 0.10 +/- 0.16 x 10^-5 and BF[B+ -> K*+ Gamma] = 4.22 +/- 0.14 +/- 0.16 x 10^-5. We constrain the direct CP asymmetry to be -0.033 < Acp < 0.028 and the isopin asymmetry to be 0.017 < \Delta0- < 0.116, where the limits are determined at the 90% confidence interval and include both statistical systematic uncertainties.
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1 revised March 26, 2009
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Submitted To | Physical Review Letters |
Date Submitted | June 12, 2009 |
Journal Year | 2009 |
Journal Volume | 103 |
Journal Article/Page Range | 211802 |
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