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Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in pp collision data at $$\sqrts=8\,\mathrm TeV$$ s = 8 T e V with the ATLAS detector

Aad, G.
•
Abbott, B.
•
Abdallah, J.
altro
GIORDANI, Mario
2016
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
This paper reports inclusive and differential measurements of the tt̄ charge asymmetry ACin 20.3 fb−1of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the Large Hadron Collider at CERN. Three differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the tt̄ system. The tt̄ pairs are selected in the single-lepton channels (e or μ) with at least four jets, and a likelihood fit is used to reconstruct the tt̄ event kinematics. A Bayesian unfolding procedure is performed to infer the asymmetry at parton level from the observed data distribution. The inclusive tt̄ charge asymmetry is measured to be AC= 0.009 ± 0.005 (stat. + syst.). The inclusive and differential measurements are compatible with the values predicted by the Standard Model.
DOI
10.1140/epjc/s10052-016-3910-6
WOS
WOS:000372877800002
Archivio
http://hdl.handle.net/11390/1109790
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85010218965
Diritti
metadata only access
Scopus© citazioni
26
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
46
Data di acquisizione
Mar 10, 2024
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