This webpage summarizes the blessed result of combination of D0 and CDF
results on ΔΓ_{s} and the CP-violating phase
β_{s}^{J/ψφ} using 2.8 fb^{-1} data.
This result is described in this public note

We present 68%, 95% and 99% confidence regions
in the β_{s}^{J/ψφ}-ΔΓ_{s} plane:

Below are all figures meant for download.

- (eps), (png): Correspondence between likelihood ratio and confidence level.
- (eps), (png): Example of adjustment of the likelihood ratio to expected Gaussian uncertainties.
- (eps), (png): CDF 2D confidence level contour, input to combination.
- (eps), (png): D0 2D confidence level contour, input to combination.
- (eps),
(png): Combined 2D confidence level contours
in the β
_{s}^{J/ψφ}-ΔΓ_{s}plane.

Text file in format: beta_s(J/psi-phi) [rad], Delta(Gamma_s) [ps-1], log(L)

Root file with 2D histogram with beta_s(J/psi-phi) [rad], Delta(Gamma_s) [ps-1] on axis and log(L) as bin content. - (eps),
(png): Combined 1D likelihood profile for
β
_{s}^{J/ψφ}.