We present measurements of branching fractions and charge asymmetries for seven B-meson decays with an eta, eta('), or omega meson in the final state. The data sample corresponds to 89x10(6) B (B) over bar pairs produced from e(+)e(-) annihilation at the Y(4S) resonance. We measure the following branching fractions in units of 10(-6): B(B+-->etapi(+))=5.3+/-1.0+/-0.3, B(B+-->etaK(+))=3.4+/-0.8+/-0.2, B(B-0-->etaK(0))=2.9+/-1.0+/-0.2 (<5.2, 90% C.L.), B(B+-->eta(')pi(+))=2.7+/-1.2+/-0.3 (<4.5, 90% C.L.), B(B+-->omegapi(+))=5.5+/-0.9+/-0.5, B(B+-->omegaK(+))=4.8+/-0.8+/-0.4, and B(B-0-->omegaK(0))=5.9(-1.3)(+1.6)+/-0.5. The charge asymmetries are A(ch)(B+-->etapi(+))=-0.44+/-0.18+/-0.01, A(ch)(B+-->etaK(+))=-0.52+/-0.24+/-0.01, A(ch)(B+-->omegapi(+))=0.03+/-0.16+/-0.01, and A(ch)(B+-->omegaK(+))=-0.09+/-0.17+/-0.01.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Observation of B0 → ωK0, B+ → ηπ+, and B+ → ηK+ and Study of Related Decays. PHYSICAL REVIEW LETTERS, 92(6), 1-7 [10.1103/PhysRevLett.92.061801].

Observation of B0 → ωK0, B+ → ηπ+, and B+ → ηK+ and Study of Related Decays

CARPINELLI, Massimo;
2004

Abstract

We present measurements of branching fractions and charge asymmetries for seven B-meson decays with an eta, eta('), or omega meson in the final state. The data sample corresponds to 89x10(6) B (B) over bar pairs produced from e(+)e(-) annihilation at the Y(4S) resonance. We measure the following branching fractions in units of 10(-6): B(B+-->etapi(+))=5.3+/-1.0+/-0.3, B(B+-->etaK(+))=3.4+/-0.8+/-0.2, B(B-0-->etaK(0))=2.9+/-1.0+/-0.2 (<5.2, 90% C.L.), B(B+-->eta(')pi(+))=2.7+/-1.2+/-0.3 (<4.5, 90% C.L.), B(B+-->omegapi(+))=5.5+/-0.9+/-0.5, B(B+-->omegaK(+))=4.8+/-0.8+/-0.4, and B(B-0-->omegaK(0))=5.9(-1.3)(+1.6)+/-0.5. The charge asymmetries are A(ch)(B+-->etapi(+))=-0.44+/-0.18+/-0.01, A(ch)(B+-->etaK(+))=-0.52+/-0.24+/-0.01, A(ch)(B+-->omegapi(+))=0.03+/-0.16+/-0.01, and A(ch)(B+-->omegaK(+))=-0.09+/-0.17+/-0.01.
Articolo in rivista - Articolo scientifico
Calorimetry; Charge carriers; Charged particles; Computer simulation; Data reduction; Parameter estimation; Photons; Quantum theory; Resonance; Kaons; Mesons; Atomic physics;
English
2004
92
6
1
7
061801
none
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Observation of B0 → ωK0, B+ → ηπ+, and B+ → ηK+ and Study of Related Decays. PHYSICAL REVIEW LETTERS, 92(6), 1-7 [10.1103/PhysRevLett.92.061801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389936
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