The branching fractions of the exclusive decays B-0 --> K*(0)gamma and B+ --> K*(+)gamma are measured. from a sample of (22.74 +/- 0.36) x 10(6) B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric e(+)e(-) collider. We find B(B-0 --> K*(0)gamma) = [4.23 +/- 0.40(stat) +/- 0.22(syst)] x 10(-5), B(B+ --> K*(+)gamma) = [3.83 +/- 0.62(stat) 0.22(syst)] X 10-5 and constrain the CP-violating charge asymmetry to be -0.170 < A(CP)(B --> K*gamma) < 0.082 at 90% C.L.

Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2002). Measurement of B → K*γ branching fractions and charge asymmetries. PHYSICAL REVIEW LETTERS, 88(10) [10.1103/PhysRevLett.88.101805].

Measurement of B → K*γ branching fractions and charge asymmetries

CARPINELLI, Massimo;
2002

Abstract

The branching fractions of the exclusive decays B-0 --> K*(0)gamma and B+ --> K*(+)gamma are measured. from a sample of (22.74 +/- 0.36) x 10(6) B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric e(+)e(-) collider. We find B(B-0 --> K*(0)gamma) = [4.23 +/- 0.40(stat) +/- 0.22(syst)] x 10(-5), B(B+ --> K*(+)gamma) = [3.83 +/- 0.62(stat) 0.22(syst)] X 10-5 and constrain the CP-violating charge asymmetry to be -0.170 < A(CP)(B --> K*gamma) < 0.082 at 90% C.L.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2002
88
10
101805
none
Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2002). Measurement of B → K*γ branching fractions and charge asymmetries. PHYSICAL REVIEW LETTERS, 88(10) [10.1103/PhysRevLett.88.101805].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390056
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