Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/125030
Title: Measurement of B→K∗(892)γ branching fractions and CP and isospin asymmetry
Author: BABAR Collaboration
Aubert, B.
Graugés Pous, Eugeni
Keywords: Partícules (Física nuclear)
Simetria (Física)
Particles (Nuclear physics)
Symmetry (Physics)
Issue Date: 19-Nov-2009
Publisher: American Physical Society
Abstract: We present an analysis of the decays B0→K*0(892)γ and B+→K*+(892)γ using a sample of about 383×106 B¯¯¯B events collected with the BABAR detector at the PEP-II symmetric energy B factory. We measure the branching fractions B(B0→K*0γ)=(4.47±0.10±0.16)×1− 5 and B (B+→K*+γ)=(4.22±0.14±0.16)×10−5. We constrain the direct CP asymmetry to be −0.033<A(B→K∗γ)<0.028 and the isospin asymmetry to be 0.017<Δ0−<0.116, where the limits are determined by the 90% confidence interval and include both the statistical and systematic uncertainties.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.103.211802
It is part of: Physical Review Letters, 2009, vol. 103, p. 211802
URI: http://hdl.handle.net/2445/125030
Related resource: https://doi.org/10.1103/PhysRevLett.103.211802
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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