Testing $\chi$PT with the masses of the Nambu-Goldstone bosons
High Energy Physics - Phenomenology
2023-06-22 v1 High Energy Physics - Lattice
Abstract
The spontaneous breakdown of an approximate symmetry implies that the spectrum of the theory contains approximately massless particles. The hidden symmetry very strongly constrains their masses. A numerical evaluation of these constraints on the lattice would allow a more precise determination of the quark mass ratios m_u:m_d:m_s and thereby reduce some of the uncertainties encountered in precision flavour physics.
Keywords
Cite
@article{arxiv.2306.12227,
title = {Testing $\chi$PT with the masses of the Nambu-Goldstone bosons},
author = {H. Leutwyler},
journal= {arXiv preprint arXiv:2306.12227},
year = {2023}
}
Comments
In memory of Harald Fritzsch, contribution to the book edited by G. Buchalla, D. L\"ust and Z.-Z. Xing