Effects of Final State Interactions on Landau Singularities
High Energy Physics - Phenomenology
2026-04-21 v2 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Theory
Abstract
In certain kinematic and particle mass configurations, triangle singularities may lead to line-shapes which mimic the effects of resonances. This well-known effect is scrutinized here in the presence of final-state rescattering. The goal is achieved first by utilizing general arguments provided by Landau equations, and second by applying a modern scattering formalism with explicit two- and three-body unitarity.
Keywords
Cite
@article{arxiv.2407.17969,
title = {Effects of Final State Interactions on Landau Singularities},
author = {Ajay S. Sakthivasan and Maxim Mai and Akaki Rusetsky and Michael Döring},
journal= {arXiv preprint arXiv:2407.17969},
year = {2026}
}
Comments
22 pages, 13 figures, revised version