${\sin }^2{\theta }_{\mathrm{eff}}^{\mathrm{lept}}$ and $M_W$(indirect) extracted from 9 fb${}^{-1}$ ${\mu }^{+}{\mu }^{-}$ event sample at CDF

Abstract

We report on the extraction of ${\sin }^2{\theta }_{\mathrm{eff}}^{\mathrm{lept}}$ and indirect measurement of the mass of the W boson from the forward-backward asymmetry of ${\mu }^{+}{\mu }^{-}$ events in the $Z$ boson mass region. The data sample collected by the CDF detector corresponds to the full 9 fb${}^{-1}$ run II sample. We measure ${\sin }^2{\theta }_{\mathrm{eff}}^{\mathrm{lept}}=0.2315\pm 0.0010$, ${\sin }^2{\theta }_W=0.2233\pm 0.0009$ and $M_W(\mathrm{indirect})=80.365\pm 0.047\mathrm{GeV}/c^2$, where each uncertainty includes both statistical and systematic contributions. Comparison with the results of the D0 collaboration are presented.

To be published in the proceedings of the 37th International Conference on High-Energy Physics, ICHEP 2014 6 pages, 3 figures

References in corpus (4)

• New parton distributions for collider physics
• Implications of CTEQ global analysis for collider observables
• Indirect measurement of ${\sin }^2{\theta }_W$ (or $M_W$) using ${\mu }^{+}{\mu }^{-}$ pairs from ${\gamma }^{\ast }/Z$ bosons produced in $p\bar{p}$ collisions at a center-of-momentum energy of 1.96 TeV
• Measurement of the effective weak mixing angle in $p\bar{p}\to Z/{\gamma }^{\ast }\to e^{+}{e}^{-}$ events