2018年11月15日 · We examine the systematic uncertainty of the derivative expansion in the HAL QCD method, which is found to be well under control at the low energies. By using the time-dependent HAL QCD method, we study the nucleon (N)-Omega (Ω) system in the 5 S 2 channel with almost physical quark masses at mπ ≃ 146 MeV.

In this article, we review the HAL QCD method to investigate baryon-baryon interactions, such as nuclear forces in lattice QCD. We first explain our strategy in detail to investigate baryon-baryon interactions by defining potentials in field theories, such as QCD.

2020年3月24日 · In this article, we review the HAL QCD method to investigate baryon-baryon interactions such as nuclear forces in lattice QCD. We first explain our strategy in detail to investigate baryon-baryon interactions by defining potentials in field theories such as QCD.

Study of the pion-pion scatterings with a combination of all-to-all propagators and the HAL QCD method

2024年2月19日 · In studies of baryon-baryon interactions in lattice QCD, the most reliable method so far is the potential method, proposed by the Hadrons to Atomic nuclei from Lattice QCD (HAL QCD) collaboration, whose formulation, properties and extensions are explained in detail.

In this paper, we review the HAL QCD method to determine baryon-baryon interactions in lattice QCD. In this method, integral kernels, or so-called “potentials,” are first extracted from lattice QCD, and physical observables, such as scattering phase shifts and binding energies are calculated by solving the

• Original (t-indep) HAL QCD method • New (t-dep) HAL QCD method – All equations can be combined in 20 G.S. saturation necessary Relativistic correction G.S. saturation in R(r,t) NOT necessary

2019年1月23日 · The lattice QCD analysis of the HAL QCD Collaboration has recently derived Ω N and Ω Ω interacting potentials with nearly physical quark masses (m π ≃ 146 MeV and m K ≃ 525 MeV). They found an attractive interaction in the Ω N S 2 5 channel which supports a bound state with a central binding energy of 1.54 MeV.

2021年9月24日 · We investigate the I = 1 π π interaction using the HAL QCD method in lattice QCD. We employ the ( 2 + 1 )-flavor gauge configurations on 32 3 × 64 lattice at the lattice spacing a ≈ 0.0907 fm and m π ≈ 411 MeV , in which the ρ meson appears as a resonance state.

2024年4月3日 · In this section, we briefly explain the HAL QCD method in which one can extract two-hadron interactions from QCD on a lattice. We consider a single channel two-baryon case for a concrete example. In lattice QCD simulations, we can calculate the so-called 4-point correlation function defined as