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Measurement of the Forward-Backward Charge Asymmetry and Extraction of sin(2) θ[eff over W] in pp-bar→Z/γ*+X→e(+)e(−)+X Events Produced at s√=1.96 TeV
Baringer, Philip S. Bean, Alice Hensel, Carsten Clutter, Justace Randall Moulik, Tania Wilson, Graham Wallace Abazov, V. M. Abbott, B. Abolins, M. Acharya, B. S.
Baringer, Philip S.
Bean, Alice
Hensel, Carsten
Clutter, Justace Randall
Moulik, Tania
Wilson, Graham Wallace
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
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Abstract
We present a measurement of the forward-backward charge asymmetry (AFB) in pp-bar→Z/γ∗+X→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. AFB 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 AFB measurement to extract the effective weak mixing angle sin(2)θ[eff over W]=0.2326±0.0018(stat)±0.0006(syst).
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This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.101.191801.
Date
2008-11-06
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American Physical Society
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V. M. Abazov et al. (The D0 Collaboration). (2008). "Measurement of the Forward-Backward Charge Asymmetry and Extraction of sin(2) θ[eff over W] in pp-bar→Z/γ*+X→e(+)e(−)+X Events Produced at s√=1.96 TeV." Physical Review Letters, 101(19):191801. http://dx.doi.org/10.1103/PhysRevLett.101.191801.