TITLE:
Light Meson Mass Spectra with Massive Quarks
AUTHORS:
Teruo Kurai
KEYWORDS:
Light Meson Mass, Quark Mass, Pion Mass, Quantum Chromodynamics
JOURNAL NAME:
Journal of Modern Physics,
Vol.12 No.11,
September
16,
2021
ABSTRACT: We investigate light meson mass spectra with massive u, d, and s quarks and with a spin effect under a bound system in 3 + 1 dimensional QCD by using the first order perturbation correction. In the process of determining charged kaon and neutral kaonmasses, we obtain masses of u, d, and s quarks that are slightly smaller than the currently accepted values. Using these masses, we obtain light meson mass spectra that includes mass splitting of charged and neutral kaons and ρ mesons. The most interesting of our results is that the pion mass remains unchanged even though u, d, and s quarks become massive.