Measurement of the CP Asymmetry in b→sγ Using a Sum of Exclusive Final States

B Aubert; Christopher Hawkes; N Soni; Alan Watson

doi:10.1103/PhysRevLett.101.171804

Measurement of the CP Asymmetry in b→sγ Using a Sum of Exclusive Final States

B Aubert, Christopher Hawkes, N Soni, Alan Watson

Physics and Astronomy

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Abstract

We perform a measurement of the CP asymmetry in b-->sgamma decays using a sample of 383 x 10(6) B[over] B events collected by the BABAR detector at the SLAC PEP-II asymmetric B factory. We reconstruct 16 flavor-specific B decay modes containing a high-energy photon and a hadronic system X_(s) containing an s quark. We measure the CP asymmetry to be -0.011+/-0.030(stat)+/-0.014(syst) for a hadronic system mass between 0.6 and 2.8 GeV/c(2).

Original language	English
Article number	171804
Journal	Physical Review Letters
Volume	101
Issue number	17
Early online date	1 Oct 2008
DOIs	https://doi.org/10.1103/PhysRevLett.101.171804
Publication status	Published - 1 Oct 2008

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10.1103/PhysRevLett.101.171804

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abstract = "We perform a measurement of the CP asymmetry in b-->sgamma decays using a sample of 383 x 10(6) B[over] B events collected by the BABAR detector at the SLAC PEP-II asymmetric B factory. We reconstruct 16 flavor-specific B decay modes containing a high-energy photon and a hadronic system X_(s) containing an s quark. We measure the CP asymmetry to be -0.011+/-0.030(stat)+/-0.014(syst) for a hadronic system mass between 0.6 and 2.8 GeV/c(2).",

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AB - We perform a measurement of the CP asymmetry in b-->sgamma decays using a sample of 383 x 10(6) B[over] B events collected by the BABAR detector at the SLAC PEP-II asymmetric B factory. We reconstruct 16 flavor-specific B decay modes containing a high-energy photon and a hadronic system X_(s) containing an s quark. We measure the CP asymmetry to be -0.011+/-0.030(stat)+/-0.014(syst) for a hadronic system mass between 0.6 and 2.8 GeV/c(2).

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DO - 10.1103/PhysRevLett.101.171804

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Measurement of the CP Asymmetry in b→sγ Using a Sum of Exclusive Final States

Abstract

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