We report a search for the decays B -→K+π-π- and B -→K-K-π+, which are highly suppressed in the standard model. Using a sample of (467±5)×106 BB̄ pairs collected with the BABAR detector, we do not see any evidence of these decays and determine 90% confidence level upper limits of B(B -→K+π-π-)<9. 5×10-7 and B(B-→K-K -π+)<1.6×10-7 on the corresponding branching fractions, including systematic uncertainties.

Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., et al. (2008). Search for the highly suppressed decays B-→K +π-π- and B-→K -K-π+. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(9) [10.1103/PhysRevD.78.091102].

Search for the highly suppressed decays B-→K +π-π- and B-→K -K-π+

CARPINELLI, Massimo;
2008

Abstract

We report a search for the decays B -→K+π-π- and B -→K-K-π+, which are highly suppressed in the standard model. Using a sample of (467±5)×106 BB̄ pairs collected with the BABAR detector, we do not see any evidence of these decays and determine 90% confidence level upper limits of B(B -→K+π-π-)<9. 5×10-7 and B(B-→K-K -π+)<1.6×10-7 on the corresponding branching fractions, including systematic uncertainties.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2008
78
9
091102
none
Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., et al. (2008). Search for the highly suppressed decays B-→K +π-π- and B-→K -K-π+. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 78(9) [10.1103/PhysRevD.78.091102].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389515
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