Measurement of time-dependent CP-violating asymmetries in B-0 -> K-*0 gamma(K-*0 -> K-S(0)pi(0)) decays

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

doi:10.1103/PhysRevLett.93.201801

Measurement of time-dependent CP-violating asymmetries in B-0 -> K-0 gamma(K-0 -> K-S(0)pi(0)) decays

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

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

Abstract

A measurement of the time-dependent CP-violating (CPV) asymmetries in a b → sy process through the exclusive decay, was performed. A systematic uncertainty of 0.02 (0.02) due to tagging asymmetries in the signal and 0.02 (0.02) due to imperfect knowledge of the probability distribution function (PDF) was included. An event-shape Fisher discriminant in the maximum-likelihood fit was employed, from which the CPV measurements were extracted. For the continuum background, the functional form of the PDF was selected, which described each fit variable in data using the sideband regions of the other observables.

Original language	English
Journal	Physical Review Letters
Volume	93
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.93.201801
Publication status	Published - 2004

Bibliographical note

Measurement of time-dependent CP-violating asymmetries in B-0 -> K-*0 gamma(K-*0 -> K-S(0)pi(0)) decays

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10.1103/PhysRevLett.93.201801

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title = "Measurement of time-dependent CP-violating asymmetries in B-0 -> K-*0 gamma(K-*0 -> K-S(0)pi(0)) decays",

abstract = "A measurement of the time-dependent CP-violating (CPV) asymmetries in a b → sy process through the exclusive decay, was performed. A systematic uncertainty of 0.02 (0.02) due to tagging asymmetries in the signal and 0.02 (0.02) due to imperfect knowledge of the probability distribution function (PDF) was included. An event-shape Fisher discriminant in the maximum-likelihood fit was employed, from which the CPV measurements were extracted. For the continuum background, the functional form of the PDF was selected, which described each fit variable in data using the sideband regions of the other observables.",

author = "B. Aubert and J.Y. Chen and R.F. Schmitz 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 {de Groot}, N. and Z. Yu",

note = "Measurement of time-dependent CP-violating asymmetries in B-0 -> K-*0 gamma(K-*0 -> K-S(0)pi(0)) decays",

year = "2004",

doi = "10.1103/PhysRevLett.93.201801",

language = "English",

volume = "93",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "20",

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TY - JOUR

T1 - Measurement of time-dependent CP-violating asymmetries in B-0 -> K-*0 gamma(K-*0 -> K-S(0)pi(0)) decays

AU - Aubert, B.

AU - Chen, J.Y.

AU - Schmitz, R.F.

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 - de Groot, N.

AU - Yu, Z.

N1 - Measurement of time-dependent CP-violating asymmetries in B-0 -> K-*0 gamma(K-*0 -> K-S(0)pi(0)) decays

PY - 2004

Y1 - 2004

N2 - A measurement of the time-dependent CP-violating (CPV) asymmetries in a b → sy process through the exclusive decay, was performed. A systematic uncertainty of 0.02 (0.02) due to tagging asymmetries in the signal and 0.02 (0.02) due to imperfect knowledge of the probability distribution function (PDF) was included. An event-shape Fisher discriminant in the maximum-likelihood fit was employed, from which the CPV measurements were extracted. For the continuum background, the functional form of the PDF was selected, which described each fit variable in data using the sideband regions of the other observables.

AB - A measurement of the time-dependent CP-violating (CPV) asymmetries in a b → sy process through the exclusive decay, was performed. A systematic uncertainty of 0.02 (0.02) due to tagging asymmetries in the signal and 0.02 (0.02) due to imperfect knowledge of the probability distribution function (PDF) was included. An event-shape Fisher discriminant in the maximum-likelihood fit was employed, from which the CPV measurements were extracted. For the continuum background, the functional form of the PDF was selected, which described each fit variable in data using the sideband regions of the other observables.

U2 - 10.1103/PhysRevLett.93.201801

DO - 10.1103/PhysRevLett.93.201801

M3 - Article

SN - 0031-9007

VL - 93

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20

ER -

Measurement of time-dependent CP-violating asymmetries in B-0 -> K-*0 gamma(K-*0 -> K-S(0)pi(0)) decays

Abstract

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Measurement of time-dependent CP-violating asymmetries in B-0 -> K-0 gamma(K-0 -> K-S(0)pi(0)) decays