Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays

B. Aubert; J.Y. Chen; K. Peters; S. Chen; L.L. Zhang; M.C. Simani; M.A. Baak; H.J. Bulten; G. Raven; H. Snoek; P. David; H. Schroder; N. de Groot; Z. Yu

doi:10.1103/PhysRevLett.94.191802

Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays

B. Aubert, J.Y. Chen, K. Peters, S. Chen, L.L. Zhang, M.C. Simani, M.A. Baak, H.J. Bulten, G. Raven, H. Snoek, P. David, H. Schroder, N. de Groot, Z. Yu

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Abstract

We present measurements of the B→η′K branching fractions; for B+→η′K+ we measure also the time-integrated charge asymmetry Ach, and for B0→η′K0S the time-dependent CP-violation parameters S and C. The data sample corresponds to 232×106 B¯¯¯B pairs produced by e+e− annihilation at the Υ(4S). The results are B(B→η′K+)=(68.9±2.0±3.2)×10−6, B(B0→η′K0)=(67.4±3.3±3.2)×10−6, Ach=0.033±0.028±0.005, S=0.30±0.14±0.02, and C=−0.21±0.10±0.02, where the first error quoted is statistical and the second is systematic.

Original language	English
Article number	191802
Journal	Physical Review Letters
Volume	94
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.94.191802
Publication status	Published - 17 May 2005

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Aubert, B., Chen, J. Y., Peters, K., Chen, S., Zhang, L. L., Simani, M. C., Baak, M. A., Bulten, H. J., Raven, G., Snoek, H., David, P., Schroder, H., de Groot, N., & Yu, Z. (2005). Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays. Physical Review Letters, 94(19), [191802]. https://doi.org/10.1103/PhysRevLett.94.191802

@article{fddc775320364110a54a70dcd6d67b46,

title = "Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays",

abstract = "We present measurements of the B→η′K branching fractions; for B+→η′K+ we measure also the time-integrated charge asymmetry Ach, and for B0→η′K0S the time-dependent CP-violation parameters S and C. The data sample corresponds to 232×106 B¯¯¯B pairs produced by e+e− annihilation at the Υ(4S). The results are B(B→η′K+)=(68.9±2.0±3.2)×10−6, B(B0→η′K0)=(67.4±3.3±3.2)×10−6, Ach=0.033±0.028±0.005, S=0.30±0.14±0.02, and C=−0.21±0.10±0.02, where the first error quoted is statistical and the second is systematic.",

author = "B. Aubert and J.Y. Chen and K. Peters and S. Chen and L.L. Zhang and M.C. Simani 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 Z. Yu",

year = "2005",

month = may,

day = "17",

doi = "10.1103/PhysRevLett.94.191802",

language = "English",

volume = "94",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "19",

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TY - JOUR

T1 - Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays

AU - Aubert, B.

AU - Chen, J.Y.

AU - Peters, K.

AU - Chen, S.

AU - Zhang, L.L.

AU - Simani, M.C.

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 - Yu, Z.

PY - 2005/5/17

Y1 - 2005/5/17

N2 - We present measurements of the B→η′K branching fractions; for B+→η′K+ we measure also the time-integrated charge asymmetry Ach, and for B0→η′K0S the time-dependent CP-violation parameters S and C. The data sample corresponds to 232×106 B¯¯¯B pairs produced by e+e− annihilation at the Υ(4S). The results are B(B→η′K+)=(68.9±2.0±3.2)×10−6, B(B0→η′K0)=(67.4±3.3±3.2)×10−6, Ach=0.033±0.028±0.005, S=0.30±0.14±0.02, and C=−0.21±0.10±0.02, where the first error quoted is statistical and the second is systematic.

AB - We present measurements of the B→η′K branching fractions; for B+→η′K+ we measure also the time-integrated charge asymmetry Ach, and for B0→η′K0S the time-dependent CP-violation parameters S and C. The data sample corresponds to 232×106 B¯¯¯B pairs produced by e+e− annihilation at the Υ(4S). The results are B(B→η′K+)=(68.9±2.0±3.2)×10−6, B(B0→η′K0)=(67.4±3.3±3.2)×10−6, Ach=0.033±0.028±0.005, S=0.30±0.14±0.02, and C=−0.21±0.10±0.02, where the first error quoted is statistical and the second is systematic.

U2 - 10.1103/PhysRevLett.94.191802

DO - 10.1103/PhysRevLett.94.191802

M3 - Article

SN - 0031-9007

VL - 94

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

M1 - 191802

ER -

Measurements of Branching Fractions and Time-Dependent CP-Violating Asymmetries in B→η′K Decays

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