Measurement of top quark polarization in <i>t</i>(<i>t</i>)over-bar lepton+jets final states



Abazov, VM, Abbott, B, Acharya, BS, Adams, M, Adams, T, Agnew, JP, Alexeev, GD, Alkhazov, G, Alton, A, Askew, A
et al (show 361 more authors) (2017) Measurement of top quark polarization in <i>t</i>(<i>t</i>)over-bar lepton+jets final states. PHYSICAL REVIEW D, 95 (1). 011101-.

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Abstract

We present a study of top quark polarization in $t \overline{t}$ events produced in $p \overline{p}$ collisions at $\sqrt{s}=1.96$ TeV. Data correspond to 9.7 fb$^{-1}$ collected with the D0 detector at the Tevatron. We use final states containing a lepton and at least three jets. The polarization is measured using the distribution of leptons along the beam and helicity axes, and the axis normal to the production plane. This is the first measurement of top quark polarization at the Tevatron in $\ell$+jets final states, and first measurement of transverse polarization in $t \overline{t}$ production. The observed distributions are consistent with the standard model.

Item Type: Article
Additional Information: 9 pages, 11 figures, published version
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 20 Jan 2020 16:43
Last Modified: 14 Oct 2023 06:11
DOI: 10.1103/PhysRevD.95.011101
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3071036