INVESTIGADORES
OTERO Y GARZON Gustavo Javier
artículos
Título:
Measurement of the forward-backward charge asymmetry and extraction of sin^2Theta^{eff}_W in ppbar -> Z/\gamma^{*}+X -> e+e+X events produced at \sqrt{s}=1.96 TeV
Autor/es:
G. OTERO Y GARZON, R. PIEGAIA, ET. AL. , THE DZERO COLLABORATION
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
AMER PHYSICAL SOC
Referencias:
Año: 2008 p. 1918011 - 1918017
ISSN:
0031-9007
Resumen:
We present a measurement of the forward-backward charge asymmetry ($A_{FB}$)
in $p\bar{p} \to Z/\gamma^{*}+X \to e^+e^-+X$ events at a center-of-mass energy
of 1.96 TeV using 1.1 fb$^{-1}$ of data collected with the D0 detector at the
Fermilab Tevatron collider. $A_{FB}$ is measured as a function of the invariant
mass of the electron-positron pair, and found to be consistent with the
standard model prediction. We use the $A_{FB}$ measurement to extract the
effective weak mixing angle $sin^2Theta^{eff}_W = 0.2327 \pm 0.0018 (stat.) \pm
0.0006 (syst.)$.
