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Title: Measurement of the forward-backward charge asymmetry and extraction of $$sin^2Theta^{eff}_W$$ in $$p\bar{p} \to Z/\gamma^{*}+X \to e^+e^-+X$$ events produced at $$\sqrt{s}=1.96$$ TeV

Journal Article ·
OSTI ID:927943

We present a measurement of the forward-backward charge asymmetry (A{sub FB}) in p{bar p} {yields} Z/{gamma}* + X {yields} e{sup +}e{sup -} + X events at a center-of-mass energy of 1.96 TeV using 1.1 fb{sup -1} of data collected with the D0 detector at the Fermilab Tevatron collider. A{sub 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{sub FB} measurement to extract the effective weak mixing angle sin{sup 2} {theta}{sub W}{sup eff} = 0.2327 {+-} 0.0018 (stat.) {+-} 0.0006 (syst.).

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-07CH11359
OSTI ID:
927943
Report Number(s):
FERMILAB-PUB-08-090-E; arXiv eprint number arXiv:0804.3220; TRN: US0804757
Country of Publication:
United States
Language:
English