Velocity of sound beyond the high-density relativistic limit from lattice simulation of dense two-color QCD
We obtain the equation of state (EoS) for two-color quantum chromodynamics (QCD) at low
temperature and high density from the lattice Monte Carlo simulation. We find that the …
temperature and high density from the lattice Monte Carlo simulation. We find that the …
Thermal effects on sound velocity peak and conformality in isospin QCD
We study thermal effects on equations of state (EOS) in isospin QCD, utilizing a quark-
meson model coupled to a Polyakov loop. The quark-meson model is analyzed at one-loop …
meson model coupled to a Polyakov loop. The quark-meson model is analyzed at one-loop …
Probing the hadron mass spectrum in dense two-color QCD with the linear sigma model
We investigate modifications of hadron masses at finite quark chemical potential in two-
flavor and two-color QCD, data of which are available from lattice simulations, within a linear …
flavor and two-color QCD, data of which are available from lattice simulations, within a linear …
Mass spectrum of spin-one hadrons in dense two-color QCD: Novel predictions by extended linear sigma model
We construct an extended version of the linear sigma model in such a way as to describe
spin-1 hadrons as well as spin-0 hadrons in two-color QCD (QC 2 D) by respecting the Pauli …
spin-1 hadrons as well as spin-0 hadrons in two-color QCD (QC 2 D) by respecting the Pauli …
Fate of the topological susceptibility in two-color dense QCD
M Kawaguchi, D Suenaga - Journal of High Energy Physics, 2023 - Springer
A bstract We explore the topological susceptibility at finite quark chemical potential and zero
temperature in two-color QCD (QC 2 D) with two flavors. Through the Ward-Takahashi …
temperature in two-color QCD (QC 2 D) with two flavors. Through the Ward-Takahashi …
Chemical potential (in) dependence of hadron scatterings in the hadronic phase of QCD-like theories and its applications
A bstract We formulate a method for calculating the hadron-hadron scattering amplitudes at
nonzero chemical potential (μ) in the hadronic phase at zero temperature, where the baryon …
nonzero chemical potential (μ) in the hadronic phase at zero temperature, where the baryon …
Sound velocity peak induced by the chiral partner in dense two-color QCD
M Kawaguchi, D Suenaga - Physical Review D, 2024 - APS
Recently, the peak structure of the sound velocity was observed in the lattice simulation of
two-color and two-flavor QCD at the finite quark chemical potential. The comparison with the …
two-color and two-flavor QCD at the finite quark chemical potential. The comparison with the …
Fate of , and baryons at high temperature with chiral restoration
D Suenaga, M Oka - arxiv preprint arxiv:2411.12172, 2024 - arxiv.org
Masses of the singly heavy baryons (SHBs), composed of a heavy quark and a light diquark,
are studied from the viewpoints of heavy-quark spin symmetry (HQSS) and chiral-symmetry …
are studied from the viewpoints of heavy-quark spin symmetry (HQSS) and chiral-symmetry …
Axial anomaly effect on the chiral-partner structure of diquarks at high temperature
D Suenaga, M Oka - Physical Review D, 2023 - APS
Masses of positive-parity and negative-parity diquarks are investigated at finite temperature
with a quark chemical potential. We employ the three-flavor Nambu-Jona-Lasinio model, in …
with a quark chemical potential. We employ the three-flavor Nambu-Jona-Lasinio model, in …
Chiral effective model of cold and dense two-color QCD: The linear sigma model approach
D Suenaga - arxiv preprint arxiv:2502.04496, 2025 - arxiv.org
This review is devoted to summarizing recent developments of the linear sigma model (LSM)
in cold and dense two-color QCD (QC $ _2 $ D), in which lattice simulations are …
in cold and dense two-color QCD (QC $ _2 $ D), in which lattice simulations are …