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T: Fachverband Teilchenphysik

T 65: Top quarks: differential cross sections

T 65.9: Vortrag

Mittwoch, 1. April 2020, 18:30–18:45, H-HS VIII

Differential cross-section measurement of the tZq process with the ATLAS detector — •Nilima Akolkar, Chris Boever, and Ian Brock — Physikalisches Institut, University of Bonn

The associated production of a single top quark with a Z boson (tZq) is a rare process confirmed by the ATLAS Collaboration in 2019. This process is of special interest, as it allows one to probe the couplings of the Z boson to the quark sector and to W bosons simultaneously.

This talk will focus on the differential cross-section measurement of the tZq process, analyzed in the trilepton decay channel. The data used was collected with the ATLAS detector during Run 2 of the LHC, corresponding to an integrated luminosity of 139 fb⁻¹. The tZq differential cross-section is measured using two different methods of unfolding and the preliminary results will be presented in the talk.