English

Top quark spin and quantum entanglement in the ATLAS experiment

High Energy Physics - Experiment 2026-02-04 v2

Abstract

Top quark pair spin correlation measurements performed by the ATLAS experiment using pppp collisions at the CERN Large Hadron Collider are summarized. Moreover, the measurement of a specific observable DD related to top quark pair spin correlations is presented using the full LHC Run 2 data taking at the center-of-mass energy of s=13\sqrt{s} = 13 TeV. This allowed the ATLAS experiment to observe the quantum entanglement, one of the fundamental property of the quantum mechanics.

Keywords

Cite

@article{arxiv.2501.03755,
  title  = {Top quark spin and quantum entanglement in the ATLAS experiment},
  author = {Roman Lysak},
  journal= {arXiv preprint arXiv:2501.03755},
  year   = {2026}
}

Comments

Talk at the 17th International Workshop on Top Quark Physics (Top2024), 22-27 September 2024