Measurement of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>sin</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:msubsup><mml:mi>θ</mml:mi><mml:mtext mathvariant="bold">eff</mml:mtext><mml:mtext mathvariant="bold">lept</mml:mtext></mml:msubsup></mml:math>using<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>pairs from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>γ</mml:mi><mml:mo>*</mml:mo></mml:msup><mml:mo stretchy="false">/</mml:mo><mml:mi>Z</mml:mi></mml:math>bosons produced in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo stretchy="false">¯</mml:mo></mml:mover></mml:math>collisions at a center-of-momentum energy of 1.96 TeV

Summary

At the Fermilab Tevatron proton-antiproton ($p\overline{p}$) collider, Drell-Yan lepton pairs are produced in the process $p\overline{p}\ensuremath{\rightarrow}{e}^{+}{e}^{\ensuremath{-}}+X$ through an intermediate ${\ensuremath{\gamma}}^{*}/Z$ boson. The forward-backward asymmetry in the polar-angle distribution of the ${e}^{\ensuremath{-}}$ as a function of the ${e}^{+}{e}^{\ensuremath{-}}$-pair mass is used to obtain ${\mathrm{sin}}^{2}{\ensuremath{\theta}}_{\text{eff}}^{\text{lept}}$, the effective leptonic determination of the electroweak-mixing parameter ${\mathrm{sin}}^{2}{\ensuremath{\theta}}_{W}$. The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to $9.4\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of integrated luminosity from $p\overline