Evidence for the rare decay B+ -> D-s(+) pi(0)

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

doi:10.1103/PhysRevLett.98.171801

Evidence for the rare decay B+ -> D-s(+) pi(0)

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

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Abstract

We have searched for the rare decay B+→Ds+π0. The analysis is based on a sample of 232×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II e+e- storage ring. We find 19.6 signal events, corresponding to a significance of 4.7σ. The extracted signal yield including statistical and systematic uncertainties is 20.1-6.0-1.5+6.8+0. 4, and we measure B(B+→Ds+π0)=(1.5-0.4+0.5±0.1±0.2) ×10-5, where the first uncertainty is statistical, the second is systematic, and the last is due to the uncertainty on the Ds+ decay and its daughter decay branching fractions. © 2007 The American Physical Society.

Original language	English
Journal	Physical Review Letters
Volume	98
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.98.171801
Publication status	Published - 2007

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Evidence for the rare decay B+ -> D-s(+) pi(0)

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@article{7b96d0af6b754a218ba1d2a64f66405b,

title = "Evidence for the rare decay B+ -> D-s(+) pi(0)",

abstract = "We have searched for the rare decay B+→Ds+π0. The analysis is based on a sample of 232×106 Υ(4S)→B{\=B} decays collected with the BABAR detector at the SLAC PEP-II e+e- storage ring. We find 19.6 signal events, corresponding to a significance of 4.7σ. The extracted signal yield including statistical and systematic uncertainties is 20.1-6.0-1.5+6.8+0. 4, and we measure B(B+→Ds+π0)=(1.5-0.4+0.5±0.1±0.2) ×10-5, where the first uncertainty is statistical, the second is systematic, and the last is due to the uncertainty on the Ds+ decay and its daughter decay branching fractions. {\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 G. Raven and H. Snoek and P. David and H. Schroder and H. Liu and {van Bakel}, N. and A. Wagner and Z. Yu",

note = "Evidence for the rare decay B+ -> D-s(+) pi(0)",

year = "2007",

doi = "10.1103/PhysRevLett.98.171801",

language = "English",

volume = "98",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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TY - JOUR

T1 - Evidence for the rare decay B+ -> D-s(+) pi(0)

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 - Raven, G.

AU - Snoek, H.

AU - David, P.

AU - Schroder, H.

AU - Liu, H.

AU - van Bakel, N.

AU - Wagner, A.

AU - Yu, Z.

N1 - Evidence for the rare decay B+ -> D-s(+) pi(0)

PY - 2007

Y1 - 2007

N2 - We have searched for the rare decay B+→Ds+π0. The analysis is based on a sample of 232×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II e+e- storage ring. We find 19.6 signal events, corresponding to a significance of 4.7σ. The extracted signal yield including statistical and systematic uncertainties is 20.1-6.0-1.5+6.8+0. 4, and we measure B(B+→Ds+π0)=(1.5-0.4+0.5±0.1±0.2) ×10-5, where the first uncertainty is statistical, the second is systematic, and the last is due to the uncertainty on the Ds+ decay and its daughter decay branching fractions. © 2007 The American Physical Society.

AB - We have searched for the rare decay B+→Ds+π0. The analysis is based on a sample of 232×106 Υ(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II e+e- storage ring. We find 19.6 signal events, corresponding to a significance of 4.7σ. The extracted signal yield including statistical and systematic uncertainties is 20.1-6.0-1.5+6.8+0. 4, and we measure B(B+→Ds+π0)=(1.5-0.4+0.5±0.1±0.2) ×10-5, where the first uncertainty is statistical, the second is systematic, and the last is due to the uncertainty on the Ds+ decay and its daughter decay branching fractions. © 2007 The American Physical Society.

U2 - 10.1103/PhysRevLett.98.171801

DO - 10.1103/PhysRevLett.98.171801

M3 - Article

SN - 0031-9007

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

ER -

Evidence for the rare decay B+ -> D-s(+) pi(0)

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