Due to the large mass, top quarks decay before top-flavoured hadrons can be formed.
This feature yields experimental access to the top quark polarisation and production asymmetries.
The large top quark sample at the Large Hadron Collider (LHC) enables measurements of other properties, such as the $W$-boson branching ratios and helicity, and fragmentation functions of the bottom quarks.
In this contribution, recent measurements of top-quark properties within the ATLAS Experiment are presented, including in particular, a first analysis of the energy asymmetry in $t\bar{t}$ production,
the first analysis of charge asymmetry in $t\bar{t}+\gamma$ production and a measurement of top-quark polarisation in single-top quark production.
Volume 414 -
41st International Conference on High Energy physics (ICHEP2022) -
Top quark and EW Physics
Measurement of top-quark properties with the ATLAS detector at the LHC
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Pre-published on:
November 08, 2022
Published on:
June 15, 2023
Abstract
DOI: https://doi.org/10.22323/1.414.0886
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.