2 citations · 4 across the 8 of their papers we have counts for
Showing 1999Show all
3 papers · 1 filter
hep-ph1999
Observed Properties of sigma-particle
Muneyuki Ishida, Shin Ishida, Taku Ishida +2
Recently we obtained the evidence for the existence of sigma(600) meson, which had been sought but missing for a long time, by reanalyzing the I=0 S-wave pi pi scattering phase shi…
hep-ph1999
Controversies on and a Reasoning for Existence of the light sigma-particle
Shin Ishida
The light sigma-particle is, regardless of the strong criticism, reviving recently due to the works done from various sides. I review essential points of the controversies (especia…
hep-ph1999
Covariant Classification of q q bar-Meson Systems and Existence of New Scalar and Axial-Vector Mesons
Shin Ishida, Muneyuki Ishida
The level classification of quark-antiquark systems is generally made by the LS-coupling scheme, resorting to the non-relativistic quark model. However, it has been well known that…