K. Murakami

activity

20192026

most citedProbing the hadron mass spectrum in dense two-color QCD with the linear sigma model

17 citations · 37 across the 24 of their papers we have counts for

collaborators

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16 papers · 1 filter

hep-lat2026

Hadron spectra of finite-density QC $_{2}$ D

Kei Iida, Etsuko Itou, Kotaro Murakami +1

We investigate the chemical-potential dependence of hadron spectra in two-color QCD using first-principles lattice simulations. We compute two-point correlation functions for all a…

hep-lat2026

$D ˉ$ -meson Nucleon Scattering from Lattice QCD at the Physical Point

Wren Yamada, Yan Lyu, Kotaro Murakami +1

We report the first lattice QCD study of the $s$ -wave scattering of the $D ˉ$ -meson and the nucleon at the physical point, utilizing (2+1)-flavor configurations generated by th…

hep-lat2025

Speed of sound exceeding the conformal bound in dense QCD-like theories

Etsuko Itou, Kei Iida, Kotaro Murakami +1

We investigated the phase structure and the equation of state (EoS) for dense two-color QCD at low temperatures using the lattice Monte Carlo simulations. A rich phase structure be…

hep-lat2025

$S$ -wave kaon-nucleon interactions from lattice QCD at the physical point

Kotaro Murakami, Sinya Aoki, Takumi Doi +2

We investigate S-wave kaon-nucleon ( $K N$ ) interactions with strangeness $S = + 1$ in lattice QCD using the time-dependent HAL QCD method. Employing the $(2 + 1)$ -flavor gauge configurat…

hep-lat2025

Wavefunction-based operator optimization for two-hadron systems in lattice QCD

Yan Lyu, Sinya Aoki, Takumi Doi +3

A systematic way to constructing optimized interpolating operators for two-hadron systems is developed by incorporating inter-hadron spatial wavefunctions. The wavefunctions can be…

hep-lat2025

Decoding Two-Particle States in QCD with Spatial Wavefunctions

Yan Lyu, Sinya Aoki, Takumi Doi +3

A systematic framework for constructing optimized interpolating operators strongly coupled to QCD two-particle states is developed, which is achieved by incorporating inter-hadron…

hep-lat2025

$Λ$ (1405) in the flavor SU(3) limit using a separable potential in the HAL QCD method

Kotaro Murakami, Sinya Aoki

Using the HAL QCD method, we investigate S-wave meson-baryon interactions in singlet and two octet channels in the flavor SU(3) limit, where the chiral unitary model predicts that…

hep-lat2024

Phase and equation of state of finite density QC $_{2}$ D at lower temperature

Etsuko Itou, Kei Iida, Kotaro Murakami +1

We investigate the phase structure and the equation of state (EoS) for dense two-color QCD at low temperatures, $T = 40$ MeV ( $3 2^{4}$ lattice) and $T = 80$ MeV ( $1 6^{4}$ lattice). A r…

hep-lat2024

Scale setting and hadronic properties in light quark sector with $(2 + 1)$ -flavor Wilson fermions at the physical point

Tatsumi Aoyama, Takahiro M. Doi, Takumi Doi +4

We report scale setting and hadronic properties for our new lattice QCD gauge configuration set (HAL-conf-2023). We employ $(2 + 1)$ -flavor nonperturbatively improved Wilson fermions…

hep-lat2024

Lattice study on finite density QC $_{2}$ D towards zero temperature

Kei Iida, Etsuko Itou, Kotaro Murakami +1

We investigate the phase structure and the equation of state (EoS) for dense two-color QCD (QC $_{2}$ D) at low temperature ( $T = 40$ MeV, $3 2^{4}$ lattice) for the purpose of extending…

hep-lat2023

Study on Lambda(1405) in the flavor SU(3) limit in the HAL QCD method

Kotaro Murakami, Sinya Aoki

We study interactions between the S-wave octet pseudo-scalar (PS) meson and octet baryon in the flavor SU(3) limit using the HAL QCD method at the PS meson mass $m_M\approx 670~\te…

hep-lat2023★ 1 cited

Chemical potential (in)dependence of hadron scatterings in the hadronic phase of QCD-like theories and its applications

Kotaro Murakami, Etsuko Itou, Kei Iida

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 number…

hep-lat2022

Measurement of hadron masses in 2-color finite density QCD

Kotaro Murakami, Daiki Suenaga, Kei Iida +1

We investigate hadron spectra in 2-color QCD using lattice simulation with $N_{f} = 2$ at low temperature and finite density in which there appears not only the hadronic phase but al…

hep-lat2022

Lattice QCD studies on decuplet baryons as meson-baryon bound states in the HAL QCD method

Kotaro Murakami, Yutaro Akahoshi, Sinya Aoki +2

We study decuplet baryons from meson-baryon interactions in lattice QCD, in particular, $Δ$ and $Ω$ baryons from P-wave $I = 3/2$ $N π$ and $I = 0$ $Ξ K ˉ$ interactions, respectively…

hep-lat2021★ 1 cited

Investigations of decuplet baryons from meson-baryon interactions in the HAL QCD method

Kotaro Murakami, Yutaro Akahoshi, Sinya Aoki +1

We study decuplet baryons from meson-baryon interactions, in particular, $Δ$ and $Ω$ baryons from P-wave $I = 3/2$ $N π$ and $I = 0$ $Ξ K ˉ$ interactions, respectively. The interacti…

hep-lat2020★ 4 cited

S-wave kaon-nucleon potentials with all-to-all propagators in the HAL QCD method

Kotaro Murakami, Yutaro Akahoshi, Sinya Aoki

In this paper, employing an all-to-all quark propagator technique, we investigate the kaon-nucleon interactions in lattice QCD. We calculate the S-wave kaon-nucleon potentials at t…

Hadron spectra of finite-density QC2​D

Dˉ-meson Nucleon Scattering from Lattice QCD at the Physical Point

Speed of sound exceeding the conformal bound in dense QCD-like theories

S-wave kaon-nucleon interactions from lattice QCD at the physical point

Wavefunction-based operator optimization for two-hadron systems in lattice QCD

Decoding Two-Particle States in QCD with Spatial Wavefunctions

Λ(1405) in the flavor SU(3) limit using a separable potential in the HAL QCD method

Phase and equation of state of finite density QC2​D at lower temperature

Scale setting and hadronic properties in light quark sector with (2+1)-flavor Wilson fermions at the physical point

Lattice study on finite density QC2​D towards zero temperature

Study on Lambda(1405) in the flavor SU(3) limit in the HAL QCD method

Chemical potential (in)dependence of hadron scatterings in the hadronic phase of QCD-like theories and its applications

Measurement of hadron masses in 2-color finite density QCD

Lattice QCD studies on decuplet baryons as meson-baryon bound states in the HAL QCD method

Investigations of decuplet baryons from meson-baryon interactions in the HAL QCD method

S-wave kaon-nucleon potentials with all-to-all propagators in the HAL QCD method

Hadron spectra of finite-density QC $_{2}$ D

$D ˉ$ -meson Nucleon Scattering from Lattice QCD at the Physical Point

$S$ -wave kaon-nucleon interactions from lattice QCD at the physical point

$Λ$ (1405) in the flavor SU(3) limit using a separable potential in the HAL QCD method

Phase and equation of state of finite density QC $_{2}$ D at lower temperature

Scale setting and hadronic properties in light quark sector with $(2 + 1)$ -flavor Wilson fermions at the physical point

Lattice study on finite density QC $_{2}$ D towards zero temperature