Author

Mamiya Kawaguchi

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Preprint Aug 2026

Meson gravitational D-form factors and symmetry breaking in low-energy QCD

We investigate meson gravitational D-form factors in the three-flavor linear sigma model and their connection to symmetry breaking in low-energy QCD. Within the scalar meson dominance picture, we examine the scalar meson exchange contributions and their relation to meson masses through scalar-meson couplings. In the th...

Mamiya Kawaguchi, Kazuhiro Tanaka, Mitsuru Tanaka · 1 citation

Preprint Oct 2026

Gravitational D-form factors of the nucleon and pion with mixing between two-quark and four-quark states

We investigate the gravitational $D$-form factors of the nucleon and pion within an extended linear sigma model (eLSM) that incorporates both two-quark and four-quark states, as well as nucleon fields. Within the scalar-meson-dominance picture, we find that meson mixing between two-quark and four-quark states suppresse...

Mamiya Kawaguchi, Yao Ma, Yong-Liang Ma · 0 citations