A Resonance in Elastic Kink-Meson Scattering
High Energy Physics - Theory
2026-03-30 v1
Abstract
We analytically sum the leading bubble diagrams that contribute to the elastic scattering amplitude of a kink and a meson in the double-well model. We find a single peak, corresponding to the unstable kink state in which the shape mode is excited twice. The peak has the usual Breit-Wigner form, and its imaginary part agrees with the shape mode decay rate found by Manton and Merabet.
Keywords
Cite
@article{arxiv.2603.26070,
title = {A Resonance in Elastic Kink-Meson Scattering},
author = {Bilguun Bayarsaikhan and Jarah Evslin},
journal= {arXiv preprint arXiv:2603.26070},
year = {2026}
}
Comments
37 pages, 7 figures