Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 6: Top Quarks: Production (Exp.) 1

T 6.5: Vortrag

Montag, 21. März 2022, 17:15–17:30, T-H19

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

The production of a single top quark in association with a Z boson (tZq) is a rare process that has been discovered by the CMS and ATLAS Collaborations. 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 boson 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 different methods of unfolding and the preliminary results will be presented in the talk.