Pion Weak Decay in a Magnetic Field
High Energy Physics - Phenomenology
2026-04-14 v1 High Energy Physics - Lattice
Abstract
Pion decay width in a uniform magnetic background, constructed within chiral perturbation theory, is compared with lattice QCD for which results are available in the muon channel. While the results are consistent for large magnetic fields, the discrepancy observed for weak magnetic fields is largely due to differences in the pion decay constants.
Cite
@article{arxiv.2604.10314,
title = {Pion Weak Decay in a Magnetic Field},
author = {Prabal Adhikari and Brian Tiburzi},
journal= {arXiv preprint arXiv:2604.10314},
year = {2026}
}
Comments
6 pages, 2 figures