20 citations · 39 across the 4 of their papers we have counts for
4 papers
Light Scalar Mesons in the Improved Ladder QCD
Toru Umekawa, Kenichi Naito, Makoto Oka +1
The light scalar meson spectrum is studied using the improved ladder QCD with the UA(1) breaking Kobayashi-Maskawa-'t Hooft interaction by solving the Schwinger-Dyson and Bethe-Sal…
Light Scalar Mesons in the Improved Ladder Approximation of QCD with Strong Breaking
Toru Umekawa
The spectrum and the mixing angle of the light scalar nonet mesons are studied using the extended Nambu-Jona-Lasinio (NJL) model as well as the improved ladder approximation (ILA)…
U_A(1) Breaking Effects on the Light Scalar Meson Spectrum
Kenichi Naito, Makoto Oka, Makoto Takizawa +1
Effects of the U_A(1) breaking interaction on the low-lying nonet scalar mesons are studied using the extended Nambu-Jona-Lasinio model. The strength of the U_A(1) breaking interac…
Renormalization Group Approach to the O(N) linear Sigma Model at Finite Temperature
T. Umekawa, K. Naito, M. Oka
The Wilsonian renormalization group (RG) method is applied to finite temperature systems for the study of non-perturbative methods in the field theory. We choose the O(N) linear si…