This is the web page summarizing the blessed results for measurement of the B0 mixing frequency and Opposite Side Tagger dilution scale factors in ten fully reconstructed (charged and neutral) B decays. This analysis has been performed as part of the ongoing CDF effort toward a Bs mixing measurement. These results were blessed in the B Physics Meeting of Thursday August 4, 2005.
The total Opposite Side Tagger effectiveness measured for this sample is&epsilon D2 = 1.553 +/- 0.163 +/- 0.050 %.
The B0 mixing frequency is
&Delta md = 0.536 +/- 0.028 +/- 0.006 ps-1.
The weighted average of the five OST dilution scale factors is
SD = 0.973 +/- 0.050 +/- 0.014.
A complete description can be found in CDF note 7920: ps.
This analysis is an updated version of previous B0 oscillation measurements which used OST only (Winter '04-'05) and SST only (Summer '04). The main upgrades include:
Tables for quick reference:
| Table 3, Signal yields | eps | tex |
| Table 4, Main fit results | eps | tex |
| Table 5, Tagging effectiveness | eps | tex |
| Table 7, Systematic errors | eps | tex |
The eps versions of all figures:
Mass/Lifetime unbinned likelihood fits
| Fig. 1 | Bd -> J/psi K* | mass | ct |
| Fig. 2 | Bu -> J/psi K | mass | ct |
| Fig. 3 | Bd -> D Pi | mass | ct |
| Fig. 4 | Bu -> D Pi | mass | ct |
| Fig. 5 | Bd -> D 3Pi | mass | ct |
| Fig. 6 | Bu -> D 3Pi | mass | ct |
| Fig. 7 | Bd -> D* Pi, D -> K Pi | mass | ct |
| Fig. 8 | Bd -> D* Pi, D -> K 3Pi | mass | ct |
| Fig. 9 | Bd -> D* 3Pi, D -> K Pi | mass | ct |
| Fig. 10 | Bd -> D* 3Pi, D -> K 3Pi | mass | ct |