We present a search for B0 decays to charmless final states involving an η meson, a charged pion, and a second charged pion or kaon. The data sample corresponds to 383×106 BB̄ pairs collected with the BABAR detector operating at the PEP-II asymmetric-energy B factory at SLAC. We find no significant signals and determine the following 90% C.L. upper limits: B(B0→a0-π+)×B(a0-→ηπ-)<3.1×10-6, B(B0→a0-K+)×B(a0-→ηπ-)<1.9×10-6, B(B0→a0(1450)-π+)×B(a0(1450)-→ηπ-)<2.3×10-6, B(B0→a0(1450)-K+)×B(a0(1450)-→ηπ-)<3.1×10-6, B(B0→ηρ0)<1.5×10-6, and B(B0→ηf0(980)) ×B(f0(980)→π+π-)<0.4×10-6.

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Search for neutral B-meson decays to a0π, a0K, ηρ0, and ηf0. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 75(11) [10.1103/PhysRevD.75.111102].

Search for neutral B-meson decays to a0π, a0K, ηρ0, and ηf0

CARPINELLI, Massimo;
2007

Abstract

We present a search for B0 decays to charmless final states involving an η meson, a charged pion, and a second charged pion or kaon. The data sample corresponds to 383×106 BB̄ pairs collected with the BABAR detector operating at the PEP-II asymmetric-energy B factory at SLAC. We find no significant signals and determine the following 90% C.L. upper limits: B(B0→a0-π+)×B(a0-→ηπ-)<3.1×10-6, B(B0→a0-K+)×B(a0-→ηπ-)<1.9×10-6, B(B0→a0(1450)-π+)×B(a0(1450)-→ηπ-)<2.3×10-6, B(B0→a0(1450)-K+)×B(a0(1450)-→ηπ-)<3.1×10-6, B(B0→ηρ0)<1.5×10-6, and B(B0→ηf0(980)) ×B(f0(980)→π+π-)<0.4×10-6.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2007
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Search for neutral B-meson decays to a0π, a0K, ηρ0, and ηf0. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 75(11) [10.1103/PhysRevD.75.111102].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389649
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