Measurement of top quark polarization in $t \overline{t}$ lepton+jets final states

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.
Type de document :
Article dans une revue
Physical Review D, American Physical Society, 2017, 95, pp.011101(R). 〈10.1103/PhysRevD.95.011101〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01349214
Contributeur : Emmanuelle Vernay <>
Soumis le : mercredi 27 juillet 2016 - 08:20:42
Dernière modification le : mardi 22 mai 2018 - 21:48:11

Lien texte intégral

Identifiants

Citation

V.M. Abazov, G. Sajot, J. Stark, S. Greder, F. Miconi, et al.. Measurement of top quark polarization in $t \overline{t}$ lepton+jets final states. Physical Review D, American Physical Society, 2017, 95, pp.011101(R). 〈10.1103/PhysRevD.95.011101〉. 〈in2p3-01349214〉

Partager

Métriques

Consultations de la notice

301