Observation of a pseudoscalar excess at the $t\bar{t}$ threshold
High Energy Physics - Experiment
2025-12-22 v2 High Energy Physics - Phenomenology
Abstract
The CMS Collaboration recently observed a pseudoscalar excess of top quark-antiquark () events near the production threshold. One possible interpretation involves the formation of a short-lived quasi-bound state of . This proceeding summarizes the first presentation of the results at the 59th Rencontres de Moriond and outlines its potential implications.
Cite
@article{arxiv.2510.09070,
title = {Observation of a pseudoscalar excess at the $t\bar{t}$ threshold},
author = {Alexander Grohsjean},
journal= {arXiv preprint arXiv:2510.09070},
year = {2025}
}
Comments
Contribution to the 2025 QCD session of the 59th Rencontres de Moriond