We perform a measurement of the CP asymmetry in b→sγ decays using a sample of 383×106 BB̄ 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 Xs 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 2.8GeV/c2.

Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prudent, X., et al. (2008). Measurement of the CP asymmetry in b→sγ using a sum of exclusive final states. PHYSICAL REVIEW LETTERS, 101(17) [10.1103/PhysRevLett.101.171804].

Measurement of the CP asymmetry in b→sγ using a sum of exclusive final states

CARPINELLI, Massimo;
2008

Abstract

We perform a measurement of the CP asymmetry in b→sγ decays using a sample of 383×106 BB̄ 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 Xs 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 2.8GeV/c2.
Articolo in rivista - Articolo scientifico
BABAR detector
English
B. Aubert et al. (The BABAR Collaboration)
Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prudent, X., et al. (2008). Measurement of the CP asymmetry in b→sγ using a sum of exclusive final states. PHYSICAL REVIEW LETTERS, 101(17) [10.1103/PhysRevLett.101.171804].
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