Measurement of the forward-backward charge asymmetry and extraction of sin**2 Theta(W)(eff) in p anti-p ---> Z/gamma* + X ---> e+ e- + X events produced at s**(1/2) = 1.96$-TeV.

, D0 Collaboration (2008) Measurement of the forward-backward charge asymmetry and extraction of sin**2 Theta(W)(eff) in p anti-p ---> Z/gamma* + X ---> e+ e- + X events produced at s**(1/2) = 1.96$-TeV. Physical review letters, 101 (19). ISSN 1079-7114

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Abstract

We present a measurement of the forward-backward charge asymmetry (AFB) in ppbar -> 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. 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 ^W _eff = 0.2326 +/- 0.0018(stat) +/- 0.0006 (syst).

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
© 2008 The American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
56872
Deposited By:
Deposited On:
10 Aug 2012 15:28
Refereed?:
Yes
Published?:
Published
Last Modified:
27 Oct 2020 03:40