SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 81: Single Top, Top Properties

T 81.2: Vortrag

Mittwoch, 22. März 2023, 17:45–18:00, HSZ/0103

Differential cross-section measurement of the tZq process with the ATLAS detector — •Nilima Akolkar¹, Ian Brock¹, Lidia Dell’Asta², and Thomas Stevenson³ for the ATLAS collaboration — ¹Physikalisches Institut, Universität Bonn — ²University of Milano — ³University of Sussex

The associated production of a single top-quark 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 the 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. The tZq differ- ential cross-section is measured using profile likelihood unfolding and the preliminary results will be presented in the talk.