Observation of decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+

B. Aubert; J.Y. Chen; K. Peters; L.L. Zhang; S. Chen; W. Wang; X.H. Li; M.A. Baak; H.J. Bulten; G. Raven; H. Snoek; P. David; H. Schroder; N. de Groot; N. van Bakel; Z. Yu

doi:10.1103/PhysRevLett.98.081801

Observation of decays B-0 -> D-s(()+)pi(-) and B-0 -> Ds()-K+

B. Aubert, J.Y. Chen, K. Peters, L.L. Zhang, S. Chen, W. Wang, X.H. Li, M.A. Baak, H.J. Bulten, G. Raven, H. Snoek, P. David, H. Schroder, N. de Groot, N. van Bakel, Z. Yu

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

We report the observation of decays B0→Ds(*)+π- and B0→Ds(*)-K+ in a sample of 230×106 Υ(4S)→BB̄ events recorded with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- storage ring. We measure the branching fractions B(B0→Ds+π-)=(1. 3±0.3(stat)±0.2(syst))×10-5, B(B0→Ds-K+)=(2.5±0. 4(stat)±0.4(syst))×10-5, B(B0→Ds*+π-)=(2.8±0. 6(stat)±0.5(syst))×10-5, and B(B0→Ds*-K+)=(2.0±0. 5(stat)±0.4(syst))×10-5. The significances of the measurements to differ from zero are 5, 9, 6, and 5 standard deviations, respectively. This is the first observation of B0→Ds+π-, B0→Ds*+π-, and B0→Ds*-K+ decays. © 2007 The American Physical Society.

Original language	English
Journal	Physical Review Letters
Volume	98
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.98.081801
Publication status	Published - 2007

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Observation of decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+

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@article{793dfc27654444d4a1d89e931199e52a,

title = "Observation of decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+",

abstract = "We report the observation of decays B0→Ds(*)+π- and B0→Ds(*)-K+ in a sample of 230×106 Υ(4S)→B{\=B} events recorded with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- storage ring. We measure the branching fractions B(B0→Ds+π-)=(1. 3±0.3(stat)±0.2(syst))×10-5, B(B0→Ds-K+)=(2.5±0. 4(stat)±0.4(syst))×10-5, B(B0→Ds*+π-)=(2.8±0. 6(stat)±0.5(syst))×10-5, and B(B0→Ds*-K+)=(2.0±0. 5(stat)±0.4(syst))×10-5. The significances of the measurements to differ from zero are 5, 9, 6, and 5 standard deviations, respectively. This is the first observation of B0→Ds+π-, B0→Ds*+π-, and B0→Ds*-K+ decays. {\textcopyright} 2007 The American Physical Society.",

author = "B. Aubert and J.Y. Chen and K. Peters and L.L. Zhang and S. Chen and W. Wang and X.H. Li and M.A. Baak and H.J. Bulten and G. Raven and H. Snoek and P. David and H. Schroder and {de Groot}, N. and {van Bakel}, N. and Z. Yu",

note = "Observation of decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+",

year = "2007",

doi = "10.1103/PhysRevLett.98.081801",

language = "English",

volume = "98",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Observation of decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+

AU - Aubert, B.

AU - Chen, J.Y.

AU - Peters, K.

AU - Zhang, L.L.

AU - Chen, S.

AU - Wang, W.

AU - Li, X.H.

AU - Baak, M.A.

AU - Bulten, H.J.

AU - Raven, G.

AU - Snoek, H.

AU - David, P.

AU - Schroder, H.

AU - de Groot, N.

AU - van Bakel, N.

AU - Yu, Z.

N1 - Observation of decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+

PY - 2007

Y1 - 2007

N2 - We report the observation of decays B0→Ds(*)+π- and B0→Ds(*)-K+ in a sample of 230×106 Υ(4S)→BB̄ events recorded with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- storage ring. We measure the branching fractions B(B0→Ds+π-)=(1. 3±0.3(stat)±0.2(syst))×10-5, B(B0→Ds-K+)=(2.5±0. 4(stat)±0.4(syst))×10-5, B(B0→Ds*+π-)=(2.8±0. 6(stat)±0.5(syst))×10-5, and B(B0→Ds*-K+)=(2.0±0. 5(stat)±0.4(syst))×10-5. The significances of the measurements to differ from zero are 5, 9, 6, and 5 standard deviations, respectively. This is the first observation of B0→Ds+π-, B0→Ds*+π-, and B0→Ds*-K+ decays. © 2007 The American Physical Society.

AB - We report the observation of decays B0→Ds(*)+π- and B0→Ds(*)-K+ in a sample of 230×106 Υ(4S)→BB̄ events recorded with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- storage ring. We measure the branching fractions B(B0→Ds+π-)=(1. 3±0.3(stat)±0.2(syst))×10-5, B(B0→Ds-K+)=(2.5±0. 4(stat)±0.4(syst))×10-5, B(B0→Ds*+π-)=(2.8±0. 6(stat)±0.5(syst))×10-5, and B(B0→Ds*-K+)=(2.0±0. 5(stat)±0.4(syst))×10-5. The significances of the measurements to differ from zero are 5, 9, 6, and 5 standard deviations, respectively. This is the first observation of B0→Ds+π-, B0→Ds*+π-, and B0→Ds*-K+ decays. © 2007 The American Physical Society.

U2 - 10.1103/PhysRevLett.98.081801

DO - 10.1103/PhysRevLett.98.081801

M3 - Article

SN - 0031-9007

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 8

ER -

Observation of decays B-0 -> D-s((*)+)pi(-) and B-0 -> Ds(*)-K+

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Observation of decays B-0 -> D-s(()+)pi(-) and B-0 -> Ds()-K+