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
ID Code:
63571
Deposited By:
Deposited On:
22 Apr 2013 11:11
Refereed?:
Yes
Published?:
Published
Last Modified:
04 Jul 2020 01:47