Semi-BPS sphaleron and its dynamics
High Energy Physics - Theory
2023-09-06 v2
Abstract
We construct a simple field theory in which a sphaleron, i.e., a saddle-point particle-like solution, forms a semi-BPS state with a background defect that is an impurity. This means that there is no static force between the sphaleron and the impurity. Therefore such a sphaleron-impurity system is very much like usual BPS multi-solitons, however, still possessing an unstable direction allowing for its decay. We study dynamics of the sphaleron in such a system.
Cite
@article{arxiv.2308.14420,
title = {Semi-BPS sphaleron and its dynamics},
author = {A. Alonso-Izquierdo and S. Navarro-Obregón and K. Oles and J. Queiruga and T. Romanczukiewicz and A. Wereszczynski},
journal= {arXiv preprint arXiv:2308.14420},
year = {2023}
}
Comments
13 pages, 12 figures, references added and improved discussion