Lambda-Nucleon and Sigma-Nucleon potentials from space-time correlation function on the lattice

2022/03/15 by Nemura, Hidekatsu · 1 citation
#FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2203.07661

Abstract

The hyperon-nucleon interaction with the strangeness S=-1 region is complicated and difficult to investigate because its flavor sector involves all the irreducible representation except the flavor singlet and has the worst signal-to-noise ratio among the strangeness regions. In order to overcome such difficulties the content of this report is twofold: (i) We present an implementation of extended effective baryon block algorithm. This is a straightforward extension of the original which was reported in LATTICE 2013. (ii) We perform single channel analysis for the ΛN system at nearly physical quark masses corresponding to (m_π,m_K)≈(146,525)~MeV and large volume (La)⁴=(96a)⁴≈ (8.1 fm)⁴. Scattering phase shifts for ΛN system are presented.

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

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