Journal Article/Contribution to a conference proceedings

PUBDB-2026-01132

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Measurement of spin correlation and entanglement in ATLAS and CMS

Jolly, F. A. (Corresponding author)DESY* ; ATLAS Collaboration (Collaboration author)DESY* ; CMS Collaboration (Collaboration author)DESY*

2026

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Please use a persistent id in citations: doi:10.1016/j.jspc.2026.100358

Report No.: arXiv:2601.04649

Abstract: The Large Hadron Collider has delivered exceptionally large proton–proton collision datasets at high centre-of-mass energies. These datasets, collected by the ATLAS and CMS detectors, enable precision tests of theoretical predictions using extensive samples of top-quark events. A key example is the study of top-quark pair spin correlations, which can be accessed through the angular distributions of the top-quark decay products owing to the unique property that the top quark decays before it can hadronise. This wealth of data has also enabled new measurements of top-quark pair properties, particularly those with enhanced sensitivity in the threshold region, such as quantum entanglement, that were previously out of reach. In this contribution, the latest highlights in this area from the ATLAS and CMS experiments, are presented.

Keyword(s): Top quark ; Entanglement ; Spin correlation

Note: The proceedings has been submitted for publication at the Journal of Subatomic Physics and Cosmology and would like to go for open access if possible. Therefore would like to apply for approval of publication

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. LHC: ATLAS

Appears in the scientific report 2026

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Jolly, F. A. (Corresponding author)DESY* ; ATLAS Collaboration (Collaboration author)DESY* ; CMS Collaboration (Collaboration author)DESY*
Measurement of spin correlation and entanglement in ATLAS and CMS
[10.3204/PUBDB-2026-01325]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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