Measurement of the CP-violating phase ϕ J/ψϕ s using the flavor-tagged decay B0 s →J/ψϕ in 8 fb−1 of pp¯ collisions

Collaboration, D0 and Bertram, Iain and Borissov, Guennadi and Fox, Harald and Ross, Anthony and Williams, Mark and Ratoff, Peter (2012) Measurement of the CP-violating phase ϕ J/ψϕ s using the flavor-tagged decay B0 s →J/ψϕ in 8 fb−1 of pp¯ collisions. Physical Review D, 85 (3). ISSN 1550-7998

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Abstract

We report an updated measurement of the CP-violating phase, ϕ J/ψϕ s, and the decay-width difference for the two mass eigenstates, ΔΓ s, from the flavor-tagged decay B 0 s →J/ψϕ. The data sample corresponds to an integrated luminosity of 8.0 fb−1 accumulated with the D0 detector using pp¯ collisions at √s =1.96 TeV produced at the Fermilab Tevatron collider. The 68% Bayesian credibility intervals, including systematic uncertainties, are ΔΓ s=0.163 +0.065 −0.064 ps−1 and ϕ J/ψϕ s =−0.55 +0.38 −0.36. The p-value for the Standard Model point is 29.8%.

Item Type: Journal Article
Journal or Publication Title: Physical Review D
Additional Information: © 2012 American Physical Society Submitted to Phys. Rev. D. 30 pages, 28 figures
Departments: Faculty of Science and Technology > Physics
ID Code: 63571
Deposited By: ep_importer_pure
Deposited On: 22 Apr 2013 11:11
Refereed?: Yes
Published?: Published
Last Modified: 20 Feb 2020 01:43
URI: https://eprints.lancs.ac.uk/id/eprint/63571

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