Branching fraction measurements of charmless B0→K*0h1+h2- (h1,2=K, π) decays are presented, using a data sample of 383×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the PEP-II asymmetric-energy B-meson factory at SLAC. The results are B(B0→K* 0K+K-)=(27.5±1.3±2.2)×10-6, B(B0→K*0π+K-)=(4. 6±1.1±0.8)×10-6, and B(B0→K*0π+π-)=(54. 5±2.9±4.3)×10-6. The first errors quoted are statistical and the second are systematic. An upper limit is set for B(B0→K*0K+π- )<2.2×10-6 at 90% confidence level. We also present measurements of CP-violating asymmetries for the observed decays.

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Measurements of the branching fractions of B0 → K*0K+K−, B0 → K*0π+K−, B0 → K*0K+π−, and B0 → K*0π+π−. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 76(7) [10.1103/PhysRevD.76.071104].

Measurements of the branching fractions of B0 → K*0K+K−, B0 → K*0π+K−, B0 → K*0K+π−, and B0 → K*0π+π−

CARPINELLI, Massimo;
2007

Abstract

Branching fraction measurements of charmless B0→K*0h1+h2- (h1,2=K, π) decays are presented, using a data sample of 383×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the PEP-II asymmetric-energy B-meson factory at SLAC. The results are B(B0→K* 0K+K-)=(27.5±1.3±2.2)×10-6, B(B0→K*0π+K-)=(4. 6±1.1±0.8)×10-6, and B(B0→K*0π+π-)=(54. 5±2.9±4.3)×10-6. The first errors quoted are statistical and the second are systematic. An upper limit is set for B(B0→K*0K+π- )<2.2×10-6 at 90% confidence level. We also present measurements of CP-violating asymmetries for the observed decays.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2007
76
7
071104
none
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Measurements of the branching fractions of B0 → K*0K+K−, B0 → K*0π+K−, B0 → K*0K+π−, and B0 → K*0π+π−. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 76(7) [10.1103/PhysRevD.76.071104].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389670
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