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Evidence for CP violation in B-0 -> J/psi pi(0) decays

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BABAR Collaboration (Including:

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., Tisserand, V., Tico, J. Garra, Grauges, E. et al.
). (2008) Evidence for CP violation in B-0 -> J/psi pi(0) decays. Physical Review Letters, Vol.101 (No.2). article no. 021801. ISSN 0031-9007

Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.101.021801

Abstract

We present measurements of the branching fraction and time-dependent CP asymmetries in B-0 -> J/psi pi(0) decays based on 466x10(6) Gamma(4S)-> B (B) over bar events collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We measure the CP asymmetry parameters S=-1.23 +/- 0.21(stat) +/- 0.04(syst) and C=-0.20 +/- 0.19(stat)+/- 0.03(syst), where the measured value of (S, C) is 4.0 standard deviations from (0, 0) including systematic uncertainties. The branching fraction is determined to be B(B-0 -> J/psi pi(0))=[1.69 +/- 0.14(stat)+/- 0.07(syst)]x10(-5).

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Date: 11 July 2008
Volume: Vol.101
Number: No.2
Number of Pages: 7
Page Range: article no. 021801
Identification Number: 10.1103/PhysRevLett.101.021801
Status: Peer Reviewed
Publication Status: Published
URI: http://wrap.warwick.ac.uk/id/eprint/29702

Data sourced from Thomson Reuters' Web of Knowledge

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