We report a search for the decays B(-) -> K(+)pi(-)pi(-) and B(-) -> K(-)K(-)pi(+), which are highly suppressed in the standard model. Using a sample of (467 +/- 5) x 10(6) B (B) over bar 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(+)pi(-)pi(-)) and < 9.5 x 10(-7) B(B(-) -> K(-)K(-)pi(+)) and < 1.6 x 10(-7) on the corresponding branching fractions, including systematic uncertainties.
Search for the highly suppressed decays B(-) -> K(+)pi(-)pi(-) and B(-) -> K(-)K(-)pi(+) RID C-5223-2009
CALDERINI, GIOVANNI;ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;FORTI, FRANCESCO;GIORGI, MARCELLO;PAOLONI, EUGENIO;RIZZO, GIULIANA;
2008-01-01
Abstract
We report a search for the decays B(-) -> K(+)pi(-)pi(-) and B(-) -> K(-)K(-)pi(+), which are highly suppressed in the standard model. Using a sample of (467 +/- 5) x 10(6) B (B) over bar 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(+)pi(-)pi(-)) and < 9.5 x 10(-7) B(B(-) -> K(-)K(-)pi(+)) and < 1.6 x 10(-7) on the corresponding branching fractions, including systematic uncertainties.File in questo prodotto:
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