# Baryon interactions from lattice QCD with physical masses ---S=-3 sector: XiSigma and XiLambda-XiSigma---

## TL;DR

This study uses lattice QCD with near-physical quark masses to compute baryon-baryon potentials in the S=-3 sector, providing insights into XiSigma and XiLambda-XiSigma interactions relevant for understanding hyperon interactions.

## Contribution

First lattice QCD calculations of baryon-baryon potentials in the S=-3 sector with physical quark masses, using the HAL QCD method on large lattices.

## Key findings

- Qualitative consistency with flavor SU(3) limit behaviors
- Potential results obtained for XiSigma and XiLambda-XiSigma channels
- Demonstration of the HAL QCD method's applicability in this sector

## Abstract

We present lattice QCD results of baryon-baryon potentials in S=-3 sector, i.e., \Xi\Sigma (I=3/2) potentials and \Xi\Lambda-\Xi\Sigma coupled channel potentials (I=1/2) by using the 2+1 flavor gauge configurations with almost the physical quark masses generated on 96^4 lattice with 1/a \simeq 2.3 GeV and L = 96a \simeq 8.1 fm where m_pi \simeq 146 MeV and m_K \simeq 525 MeV. These potentials are obtained based on the time-dependent HAL QCD method with a non-relativistic approximation. Qualitative behaviors of the results are found to be consistent with those in the flavor SU(3) limit.