Combination of the CDF and D0 effective leptonic electroweak mixing angles and indirect measurement of the W mass.

<!--HTML--><p>CDF and D0 have measured the effective leptonic weak mixing angle sin2T_lept_eff , using their full Tevatron datasets. I describe the techniques used in CDF and D0 analyses and the Tevatron combination of these two measurements. I also discuss the Zfitter standard model-based inference of the on-shell electroweak mixing angle sin2T_W(on-shell) , or equivalently, an indirect measurement of the&nbsp; W-boson mass. The combination of CDF and D0 results yields:</p> <p>sin2T_lept_ eff = 0.23179 &plusmn; 0.00035,<br /> sin2TW (on shell)&nbsp; = 0.22356 &plusmn; 0.00035<br /> M_W (indirect) = 80.351 &plusmn; 0.018 GeV/c2.</p>