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Measurement of the asymmetry in angular distributions of leptons produced in dilepton tt-bar final states in pp-bar collisions at s√=1.96  TeV

Baringer, Philip S.
Bean, Alice
Chen, G.
Clutter, Justace Randall
Sekaric, Jadranka
Wilson, Graham Wallace
Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
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Abstract
We present measurements of asymmetries in angular distributions of leptons produced in tt-bar events in proton-antiproton collisions at the Fermilab Tevatron Collider. We consider final states where the W(±) bosons from top quark and antiquark decays both decay into ℓν (ℓ=e, μ) resulting in oppositely charged dilepton final states with accompanying jets. Using 9.7  fb(−1) of integrated luminosity collected with the D0 detector, we find the asymmetries in lepton pseudorapidity compatible with predictions based on the standard model.
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This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.112002.
Date
2013-12-02
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American Physical Society
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V. M. Abazov et al. (D0 Collaboration). (2013). "Measurement of the asymmetry in angular distributions of leptons produced in dilepton tt-bar final states in pp-bar collisions at s√=1.96  TeV." Physical Review D, 88(11):112002. http://dx.doi.org/10.1103/PhysRevD.88.112001.
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