Study of CP-violating asymmetries in B0→ π+π-K+π- decays

BABAR Collaboration

doi:10.1103/PhysRevD.65.051502

Study of CP-violating asymmetries in B⁰→ π⁺π^-K⁺π^- decays

BABAR Collaboration

Laboratoire de Physique des Particules
Università degli studi di Bari Aldo Moro
Institute of High Energy Physics, Chinese Academy of Sciences
University of Bergen
University of California, Berkeley
University of Birmingham
Ruhr-University Bochum
University of Bristol
University of British Columbia
Brunel University London
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Long Beach VA and University of California
University of California, Los Angeles
University of California, San Diego
University of California, Santa Barbara
University of California at Santa Cruz
California Institute of Technology
University of Cincinnati
University of Colorado Boulder
Cooperative Institute for Research in the Atmosphere
Institut Pierre Simon Laplace, CNRS and CEA
Technical University Dresden
University of Edinburgh
Elon University
University of Ferrara
Florida A and M University
LNF-INFN
University of Perugia
University of Genoa
Harvard University
University of Iowa
Iowa State University
Laboratoire de l'Accélérateur Linéaire
Lawrence Livermore National Laboratory
University of Liverpool
University of London
Queen Mary University of London
Royal Holloway University of London
University of Louisville
University of Manchester
University of Maryland, College Park
UMass Amherst
Massachusetts Institute of Technology
McGill University
University of Milano
University of Mississippi
Universite de Montreal
Mount Holyoke College
University of Naples Federico II
Università degli Studi della Basilicata
University of Notre Dame
Oak Ridge National Laboratory
University of Oregon
University of Padova
Sorbonne Université
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University of Pennsylvania
University of Pisa
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Dipartimento di Fisica
Universität Rostock
CCLRC Rutherford Appleton Laboratory
University of South Carolina
Stanford Linear Accelerator Center
Stanford University
TRIUMF
University of Tennessee
University of Texas
University of Turin
University of Trieste
Vanderbilt University
University of Victoria
University of Wisconsin-Madison
Yale University

Research output: Contribution to journal › Article › peer-review

Abstract

We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the eigenstate, and an updated measurement of the charge asymmetry in B⁰→K⁺π^-~ decays. In a sample of 33 million Y(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65_-11 ⁺¹² and 217±18 K⁺π^- candidates and measure the asymmetry parameters S_ππ=0.03_-0.56 ^+0.53±0.111, C_ππ=-0.25_-0.17 ^+0.45±0.14, and A_Kπ = -0.07±0. 08±0.02, where the first error is statistical and the second is systematic.

Original language	English
Article number	051502
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	65
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.65.051502
Publication status	Published - 1 Jan 2002

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10.1103/PhysRevD.65.051502

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@article{72ddbaf3b86d4db9b031ad06b84bf6e2,

title = "Study of CP-violating asymmetries in B0→ π+π-K+π- decays",

abstract = "We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the eigenstate, and an updated measurement of the charge asymmetry in B0→K+π-\textasciitilde{} decays. In a sample of 33 million Y(4S)→B{\=B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65-11 +12 and 217±18 K+π- candidates and measure the asymmetry parameters Sππ=0.03-0.56 +0.53±0.111, Cππ=-0.25-0.17 +0.45±0.14, and AKπ = -0.07±0. 08±0.02, where the first error is statistical and the second is systematic.",

author = "\{BABAR Collaboration\} and B. Aubert and D. Boutigny and Gaillard, \{J. M.\} and A. Hicheur and Y. Karyotakis and Lees, \{J. P.\} and P. Robbe and V. Tisserand and A. Palano and A. Pompili and Chen, \{G. P.\} and Chen, \{J. C.\} and Qi, \{N. D.\} and G. Rong and P. Wang and Zhu, \{Y. S.\} and G. Eigen and B. Stugu and Abrams, \{G. S.\} and Borgland, \{A. W.\} and Breon, \{A. B.\} and Brown, \{D. N.\} and J. Button-Shafer and Cahn, \{R. N.\} and Clark, \{A. R.\} and Gill, \{M. S.\} and Gritsan, \{A. V.\} and Y. Groysman and Jacobsen, \{R. G.\} and Kadel, \{R. W.\} and J. Kadyk and Kerth, \{L. T.\} and Kolomensky, \{Yu G.\} and Kral, \{J. F.\} and C. LeClerc and Levi, \{M. E.\} and G. Lynch and Oddone, \{P. J.\} and A. Perazzo and M. Pripstein and Roe, \{N. A.\} and A. Romosan and Ronan, \{M. T.\} and Shelkov, \{V. G.\} and Telnov, \{A. V.\} and Wenzel, \{W. A.\} and Bright-Thomas, \{P. G.\} and D. Bernard and Ch Thiebaux and M. Verderi",

note = "Publisher Copyright: {\textcopyright} 2002 The American Physical Society.",

year = "2002",

month = jan,

day = "1",

doi = "10.1103/PhysRevD.65.051502",

language = "English",

volume = "65",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "0556-2821",

number = "5",

}

TY - JOUR

T1 - Study of CP-violating asymmetries in B0→ π+π-K+π- decays

AU - BABAR Collaboration

AU - Aubert, B.

AU - Boutigny, D.

AU - Gaillard, J. M.

AU - Hicheur, A.

AU - Karyotakis, Y.

AU - Lees, J. P.

AU - Robbe, P.

AU - Tisserand, V.

AU - Palano, A.

AU - Pompili, A.

AU - Chen, G. P.

AU - Chen, J. C.

AU - Qi, N. D.

AU - Rong, G.

AU - Wang, P.

AU - Zhu, Y. S.

AU - Eigen, G.

AU - Stugu, B.

AU - Abrams, G. S.

AU - Borgland, A. W.

AU - Breon, A. B.

AU - Brown, D. N.

AU - Button-Shafer, J.

AU - Cahn, R. N.

AU - Clark, A. R.

AU - Gill, M. S.

AU - Gritsan, A. V.

AU - Groysman, Y.

AU - Jacobsen, R. G.

AU - Kadel, R. W.

AU - Kadyk, J.

AU - Kerth, L. T.

AU - Kolomensky, Yu G.

AU - Kral, J. F.

AU - LeClerc, C.

AU - Levi, M. E.

AU - Lynch, G.

AU - Oddone, P. J.

AU - Perazzo, A.

AU - Pripstein, M.

AU - Roe, N. A.

AU - Romosan, A.

AU - Ronan, M. T.

AU - Shelkov, V. G.

AU - Telnov, A. V.

AU - Wenzel, W. A.

AU - Bright-Thomas, P. G.

AU - Bernard, D.

AU - Thiebaux, Ch

AU - Verderi, M.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the eigenstate, and an updated measurement of the charge asymmetry in B0→K+π-~ decays. In a sample of 33 million Y(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65-11 +12 and 217±18 K+π- candidates and measure the asymmetry parameters Sππ=0.03-0.56 +0.53±0.111, Cππ=-0.25-0.17 +0.45±0.14, and AKπ = -0.07±0. 08±0.02, where the first error is statistical and the second is systematic.

AB - We present a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the eigenstate, and an updated measurement of the charge asymmetry in B0→K+π-~ decays. In a sample of 33 million Y(4S)→BB̄ decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65-11 +12 and 217±18 K+π- candidates and measure the asymmetry parameters Sππ=0.03-0.56 +0.53±0.111, Cππ=-0.25-0.17 +0.45±0.14, and AKπ = -0.07±0. 08±0.02, where the first error is statistical and the second is systematic.

UR - https://www.scopus.com/pages/publications/4244049834

U2 - 10.1103/PhysRevD.65.051502

DO - 10.1103/PhysRevD.65.051502

M3 - Article

AN - SCOPUS:4244049834

SN - 0556-2821

VL - 65

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 5

M1 - 051502

ER -

Study of CP-violating asymmetries in B⁰→ π⁺π^-K⁺π^- decays

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