Date of this Version
PHYSICAL REVIEW D 85, 032006 (2012); DOI: 10.1103/PhysRevD.85.032006
We report an updated measurement of the CP-violating phase, ΦsJ/ᴪΦ, and the decay-width difference for the two mass eigenstates, ∆Ӷs, from the flavor-tagged decay B0s → J/ᴪΦ. The data sample corresponds to an integrated luminosity of 8.0 fb-1 accumulated with the D0 detector using pp̅ collisions at √s= 1.96 TeV produced at the Fermilab Tevatron collider. The 68% Bayesian credibility intervals, including systematic uncertainties, are ∆Ӷs = 0.163 + 0.065-0.064 ps-1 and ΦsJ/ᴪΦ= -0.55+0.38-0.36. The p-value for the Standard Model point is 29.8%.