Study of time-dependent CP asymmetry in neutral B decays to J/ψπ⁰

B Aubert; Theresa Harrison; Christopher Hawkes; David Knowles; Richard Penny; Alan Watson; Nigel Watson

doi:10.1103/PhysRevLett.91.061802

Study of time-dependent CP asymmetry in neutral B decays to J/ψπ⁰

B Aubert, Theresa Harrison, Christopher Hawkes, David Knowles, Richard Penny, Alan Watson, Nigel Watson

Physics and Astronomy

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Abstract

We present the first study of the time-dependent CP-violating asymmetry in B0-->J/psi pi(0) decays using e(+)e(-) annihilation data collected with the BABAR detector at the Upsilon(4S) resonance during the years 1999-2002 at the PEP-II asymmetric-energy B Factory at SLAC. Using approximately 88 x 10(6) BB; pairs, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C(J/psi pi(0))=0.38+/-0.41(stat)+/-0.09(syst) and S(J/psi pi(0))=0.05+/-0.49(stat)+/-0.16(syst).

Original language	English
Pages (from-to)	061802
Number of pages	1
Journal	Physical Review Letters
Volume	91
Issue number	6
Early online date	1 Aug 2003
DOIs	https://doi.org/10.1103/PhysRevLett.91.061802
Publication status	Published - 1 Aug 2003

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title = "Study of time-dependent CP asymmetry in neutral B decays to J/ψπ⁰",

abstract = "We present the first study of the time-dependent CP-violating asymmetry in B0-->J/psi pi(0) decays using e(+)e(-) annihilation data collected with the BABAR detector at the Upsilon(4S) resonance during the years 1999-2002 at the PEP-II asymmetric-energy B Factory at SLAC. Using approximately 88 x 10(6) BB; pairs, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C(J/psi pi(0))=0.38+/-0.41(stat)+/-0.09(syst) and S(J/psi pi(0))=0.05+/-0.49(stat)+/-0.16(syst).",

author = "B Aubert and Theresa Harrison and Christopher Hawkes and David Knowles and Richard Penny and Alan Watson and Nigel Watson",

year = "2003",

month = aug,

day = "1",

doi = "10.1103/PhysRevLett.91.061802",

language = "English",

volume = "91",

pages = "061802",

journal = "Physical Review Letters",

issn = "1079-7114",

publisher = "American Physical Society (APS)",

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T1 - Study of time-dependent CP asymmetry in neutral B decays to J/ψπ⁰

AU - Aubert, B

AU - Harrison, Theresa

AU - Hawkes, Christopher

AU - Knowles, David

AU - Penny, Richard

AU - Watson, Alan

AU - Watson, Nigel

PY - 2003/8/1

Y1 - 2003/8/1

N2 - We present the first study of the time-dependent CP-violating asymmetry in B0-->J/psi pi(0) decays using e(+)e(-) annihilation data collected with the BABAR detector at the Upsilon(4S) resonance during the years 1999-2002 at the PEP-II asymmetric-energy B Factory at SLAC. Using approximately 88 x 10(6) BB; pairs, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C(J/psi pi(0))=0.38+/-0.41(stat)+/-0.09(syst) and S(J/psi pi(0))=0.05+/-0.49(stat)+/-0.16(syst).

AB - We present the first study of the time-dependent CP-violating asymmetry in B0-->J/psi pi(0) decays using e(+)e(-) annihilation data collected with the BABAR detector at the Upsilon(4S) resonance during the years 1999-2002 at the PEP-II asymmetric-energy B Factory at SLAC. Using approximately 88 x 10(6) BB; pairs, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C(J/psi pi(0))=0.38+/-0.41(stat)+/-0.09(syst) and S(J/psi pi(0))=0.05+/-0.49(stat)+/-0.16(syst).

U2 - 10.1103/PhysRevLett.91.061802

DO - 10.1103/PhysRevLett.91.061802

M3 - Article

C2 - 12935069

SN - 1079-7114

VL - 91

SP - 061802

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

ER -

Study of time-dependent CP asymmetry in neutral B decays to J/ψπ⁰

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