We present measurements of the branching fractions for the decays B-+/--> a(1)(+/-)(1260)pi(0) and B-+/--> a(1)(0)(1260)pi(+/-) from a data sample of 232x10(6) B(B)over-bar pairs produced in e(+)e(-) annihilation through the Upsilon(4S) resonance. We measure the branching fraction B(B-+/--> a(1)(+/-)(1260)pi(0))xB(a(1)(+/-)(1260)->pi(-)pi(+)pi(+/-))=(13.2 +/- 2.7 +/- 2.1)x10(-6) with a significance of 4.2 sigma, and the branching fraction B(B-+/--> a(1)(0)(1260)pi(+/-))xB(a(1)(0)(1260)->pi(-)pi(+)pi(0))=(20.4 +/- 4.7 +/- 3.4)x10(-6) with a significance of 3.8 sigma, where the first error quoted is statistical and the second is systematic.

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J.p., Poireau, V., et al. (2007). Evidence for charged B meson decays to a(1)(+/-)(1260)pi(0) and a(1)(0)(1260)pi(+/-). PHYSICAL REVIEW LETTERS, 99(26), 1-7 [10.1103/PhysRevLett.99.261801].

Evidence for charged B meson decays to a(1)(+/-)(1260)pi(0) and a(1)(0)(1260)pi(+/-)

PATRIGNANI, CLAUDIA;
2007

Abstract

We present measurements of the branching fractions for the decays B-+/--> a(1)(+/-)(1260)pi(0) and B-+/--> a(1)(0)(1260)pi(+/-) from a data sample of 232x10(6) B(B)over-bar pairs produced in e(+)e(-) annihilation through the Upsilon(4S) resonance. We measure the branching fraction B(B-+/--> a(1)(+/-)(1260)pi(0))xB(a(1)(+/-)(1260)->pi(-)pi(+)pi(+/-))=(13.2 +/- 2.7 +/- 2.1)x10(-6) with a significance of 4.2 sigma, and the branching fraction B(B-+/--> a(1)(0)(1260)pi(+/-))xB(a(1)(0)(1260)->pi(-)pi(+)pi(0))=(20.4 +/- 4.7 +/- 3.4)x10(-6) with a significance of 3.8 sigma, where the first error quoted is statistical and the second is systematic.
2007
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J.p., Poireau, V., et al. (2007). Evidence for charged B meson decays to a(1)(+/-)(1260)pi(0) and a(1)(0)(1260)pi(+/-). PHYSICAL REVIEW LETTERS, 99(26), 1-7 [10.1103/PhysRevLett.99.261801].
Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, Jp; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A; Tico, Jg; Grauges, E; Lopez, L; Palano, A;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/535499
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