Measurement of the CP asymmetry in b-->sgamma using a sum of exclusive final states.

Journal article

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).

Authors: Aubert, B; Bona, M; Karyotakis, Y; Lees, J; Poireau, V

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 101
• Issue: 17
• Pages: 171804
• Publication date: 2008-10-01
• DOI: 10.1103/physrevlett.101.171804
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: BABAR Collaboration