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).

Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2003). Study of the rare decays B0→ Ds (*)+π-and B0→ Ds (*)-K+. PHYSICAL REVIEW LETTERS, 90(18), 1-7 [10.1103/PhysRevLett.90.181803].

Study of the rare decays B0→ Ds (*)+π-and B0→ Ds (*)-K+

CARPINELLI, Massimo;
2003

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).
Articolo in rivista - Articolo scientifico
Charged particles; Computer simulation; Elementary particles; Ion exchange; Particle beam tracking; Particle detectors; Phase transitions; Random processes; Storage rings; Branching fractions; Charged particle tracking; Cherenkov radiation; Feynman diagrams; Fox-Wolfram moments; Mesons; High energy physics;
English
2003
90
18
1
7
181803
none
Aubert, B., Boutigny, D., Gaillard, J., Hicheur, A., Karyotakis, Y., Lees, J., et al. (2003). Study of the rare decays B0→ Ds (*)+π-and B0→ Ds (*)-K+. PHYSICAL REVIEW LETTERS, 90(18), 1-7 [10.1103/PhysRevLett.90.181803].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389994
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