A Fast Algorithm for Lattice Hyperonic Potentials

TL;DR

This paper introduces a fast algorithm for calculating baryon-baryon interactions using lattice QCD, enabling near-physical point simulations with large volumes and preliminary potentials for Lambda-N interactions.

Contribution

The paper presents an efficient algorithm for computing extensive baryon-baryon interactions in lattice QCD at near-physical quark masses.

Findings

Preliminary Lambda-N potential results at physical quark masses.

Algorithm enables large-volume lattice QCD calculations.

Foundation for future detailed baryon interaction studies.

Abstract

We describe an efficient algorithm to compute a large number of baryon-baryon interactions from $NN$ to $\Xi\Xi$ by means of HAL QCD method, which lays the groundwork for the nearly physical point lattice QCD calculation with volume $(96a)^4\approx$($8.2$fm)$^4$. Preliminary results of $\Lambda N$ potential calculated with quark masses corresponding to ($m_{\pi}$,$m_{K}$)$\approx$(146,525)MeV are presented.