Revisiting experimental mass limits on HECOs using Dyson-Schwinger resummation
Abstract
High-Electric-Charge compact Objects (HECOs) appear in several theoretical particle physics models beyond the Standard Model, and are actively searched for in current colliders, such as the Large Hadron Collider (LHC). In such searches, mass bounds of these objects have been placed, using Drell-Yan and Photon-Fusion processes at tree level so far. However, such estimates are not reliable, given that, as a result of the large values of the electric charge of the HECO, perturbative QED calculations break down. We present a Dyson-Schwinger-like resummation scheme, which allows for a large gauge coupling and thus makes the computation of the pertinent HECO-production cross sections reliable, thus allowing us to extract improved mass bounds for such objects from ATLAS and MoEDAL searches.
Cite
@article{arxiv.2410.16434,
title = {Revisiting experimental mass limits on HECOs using Dyson-Schwinger resummation},
author = {Jean Alexandre and Nick E. Mavromatos and Vasiliki A. Mitsou and Emanuela Musumeci},
journal= {arXiv preprint arXiv:2410.16434},
year = {2024}
}
Comments
6 pages, 1 figure, Proceedings for the 42nd International Conference on High Energy Physics (ICHEP 2024), 18-24 July 2024; submitted to Proceedings of Science (PoS)