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Measurement of B -> K-*(892)gamma branching fractions and CP and isospin asymmetries
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BABAR Collaboration (Including:
). (2009) Measurement of B -> K-*(892)gamma branching fractions and CP and isospin asymmetries. Physical Review Letters, Vol.103 (No.21). article no. 211802 . doi:10.1103/PhysRevLett.103.211802 ISSN 0031-9007.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.103.211802
Abstract
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 <Delta(0-)< 0.116, where the limits are determined by the 90% confidence interval and include both the statistical and systematic uncertainties.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 20 November 2009 | ||||
Dates: |
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Volume: | Vol.103 | ||||
Number: | No.21 | ||||
Number of Pages: | 7 | ||||
Page Range: | article no. 211802 | ||||
DOI: | 10.1103/PhysRevLett.103.211802 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | 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 |
Data sourced from Thomson Reuters' Web of Knowledge
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