collaborators

5 papers

hep-ph2026

Proton GTMDs and Wigner Distributions in the Chiral Quark Soliton Model: Orbital Angular Momentum and Spin-Orbit Correlation with Sea Quarks

Josuke Minamiguchi, Tomoya Uji

We calculate the leading-twist vector and axial-vector quark generalized transverse-momentum-dependent distributions (GTMDs) of the proton in the chiral quark soliton model, includ…

hep-ph2026

Generalized parton distributions of the nucleon in the chiral quark soliton model: Sum over all quark states at nonzero skewness and momentum transfer

Josuke Minamiguchi

We compute the combinations and of unpolarized generalized parton distributions (GPDs) of the nucleon in the chiral quark soli…

hep-ph2026

Chiral anomaly and nucleon spin decomposition in the chiral quark soliton model

Josuke Minamiguchi, Tomoya Uji

We investigate how the chiral anomaly influences the decomposition of nucleon spin between quark spin and orbital motion. We extend the chiral quark soliton model by including a fl…

gr-qc2026

Universal Relations for Neutron Stars from Asymptotic Analysis

Syo Kamata, Josuke Minamiguchi, Shuhei Minato

Dimensionless observables of neutron stars, such as the moment of inertia, the tidal deformability, the spin-induced quadrupole moment, and the compactness, satisfy the I--Love--Q…

astro-ph.HE2025

Magnetic-type Love number differentiating quark stars from neutron stars

Kenji Fukushima, Josuke Minamiguchi, Tomoya Uji

The quark star (QS) is a hypothetical and yet undiscovered stellar object, and its existence would mark a paradigm shift in research on nuclear and quark matter. Although compactne…