We report evidence for the decays B-0-->D(s)(+)pi(-) and B-0-->Ds-K+ and the results of a search for B-0-->D*(+)(s)pi(-) and B-0-->D*K--(s)+ in a sample of 84x10(6) Y(4S) decays into B (B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. We measure the branching fractions B(B-0-->D(s)(+)pi(-))=[3.2+/-0.9(stat)+/-1.0(syst)]x10(-5) and B(B-0-->Ds-K+)=[3.2+/-1.0(stat)+/-1.0(syst)]x10(-5). We also set 90% C.L. limits B(B-0-->D*(+)(s)pi(-))<4.1x10(-5) and B(B-0-->D*K--(s)+)<2.5x10(-5).

Study of the rare decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+ RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1189-2011 RID D-1055-2009 RID A-2675-2009

ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;CALDERINI, GIOVANNI;FORTI, FRANCESCO;GIORGI, MARCELLO;PAOLONI, EUGENIO;RIZZO, GIULIANA;TRIGGIANI, GIUSEPPE;
2003-01-01

Abstract

We report evidence for the decays B-0-->D(s)(+)pi(-) and B-0-->Ds-K+ and the results of a search for B-0-->D*(+)(s)pi(-) and B-0-->D*K--(s)+ in a sample of 84x10(6) Y(4S) decays into B (B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage ring. We measure the branching fractions B(B-0-->D(s)(+)pi(-))=[3.2+/-0.9(stat)+/-1.0(syst)]x10(-5) and B(B-0-->Ds-K+)=[3.2+/-1.0(stat)+/-1.0(syst)]x10(-5). We also set 90% C.L. limits B(B-0-->D*(+)(s)pi(-))<4.1x10(-5) and B(B-0-->D*K--(s)+)<2.5x10(-5).
2003
Aubert, B; Boutigny, D; Gaillard, Jm; Hicheur, A; Karyotakis, Y; Lees, Jp; Robbe, P; Tisserand, V; Zghiche, A; Palano, A; Pompili, A; Chen, Jc; Qi, Nd...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/184469
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