Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0->D*+D*-

B Aubert; Matthew Barrett; Kelly Ford; Theresa Harrison; Alistair Hart; Christopher Hawkes; Sian Morgan; Alan Watson

doi:10.1103/PhysRevLett.95.151804

Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0->D+D-

B Aubert, Matthew Barrett, Kelly Ford, Theresa Harrison, Alistair Hart, Christopher Hawkes, Sian Morgan, Alan Watson

Physics and Astronomy

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17 Citations (Scopus)

Abstract

We present an updated measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B0-->D*+D*- using 232x10(6)BB pairs collected by the BABAR detector at the SLAC PEP-II B factory. We determine the CP-odd fraction to be 0.125+/-0.044(stat)+/-0.007(syst). The time-dependent CP asymmetry parameters C+ and S+ are determined to be 0.06+/-0.17(stat)+/-0.03(syst) and -0.75+/-0.25(stat)+/-0.03(syst), respectively. The standard model predicts these parameters to be 0 and -sin2beta, respectively, in the absence of penguin amplitude contributions.

Original language	English
Pages (from-to)	151804
Number of pages	1
Journal	Physical Review Letters
Volume	95
DOIs	https://doi.org/10.1103/PhysRevLett.95.151804
Publication status	Published - 1 Oct 2005

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10.1103/PhysRevLett.95.151804

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title = "Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0->D*+D*-",

abstract = "We present an updated measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B0-->D*+D*- using 232x10(6)BB pairs collected by the BABAR detector at the SLAC PEP-II B factory. We determine the CP-odd fraction to be 0.125+/-0.044(stat)+/-0.007(syst). The time-dependent CP asymmetry parameters C+ and S+ are determined to be 0.06+/-0.17(stat)+/-0.03(syst) and -0.75+/-0.25(stat)+/-0.03(syst), respectively. The standard model predicts these parameters to be 0 and -sin2beta, respectively, in the absence of penguin amplitude contributions.",

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T1 - Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0->D*+D*-

AU - Aubert, B

AU - Barrett, Matthew

AU - Ford, Kelly

AU - Harrison, Theresa

AU - Hart, Alistair

AU - Hawkes, Christopher

AU - Morgan, Sian

AU - Watson, Alan

PY - 2005/10/1

Y1 - 2005/10/1

N2 - We present an updated measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B0-->D*+D*- using 232x10(6)BB pairs collected by the BABAR detector at the SLAC PEP-II B factory. We determine the CP-odd fraction to be 0.125+/-0.044(stat)+/-0.007(syst). The time-dependent CP asymmetry parameters C+ and S+ are determined to be 0.06+/-0.17(stat)+/-0.03(syst) and -0.75+/-0.25(stat)+/-0.03(syst), respectively. The standard model predicts these parameters to be 0 and -sin2beta, respectively, in the absence of penguin amplitude contributions.

AB - We present an updated measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B0-->D*+D*- using 232x10(6)BB pairs collected by the BABAR detector at the SLAC PEP-II B factory. We determine the CP-odd fraction to be 0.125+/-0.044(stat)+/-0.007(syst). The time-dependent CP asymmetry parameters C+ and S+ are determined to be 0.06+/-0.17(stat)+/-0.03(syst) and -0.75+/-0.25(stat)+/-0.03(syst), respectively. The standard model predicts these parameters to be 0 and -sin2beta, respectively, in the absence of penguin amplitude contributions.

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U2 - 10.1103/PhysRevLett.95.151804

DO - 10.1103/PhysRevLett.95.151804

M3 - Article

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SN - 1079-7114

VL - 95

SP - 151804

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0->D*+D*-

Abstract

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Measurement of Time-Dependent CP Asymmetries and the CP-Odd Fraction in the Decay B0->D+D-