Extraction of ${\sin }^2{\theta }_{\mathrm{eff}}^{\mathrm{lept}}$ and indirect measurement of $m_w$ from the 9 fb${}^{-1}$ full run ii sample of ${\mu }^{+}{\mu }^{-}$ events 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.

arXiv comment4 pages, 3 figures, for the CDF collaboration, Presented at 26th Rencontres de Blois, Particle Physics and Cosmology, May 18-23, 2014