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

Hidekatsu Nemura

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

High Energy Physics - Lattice 2022-03-16 v1 Nuclear Theory

Authors: Hidekatsu Nemura

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 $\Lambda N$ system at nearly physical quark masses corresponding to $(m_\pi,m_K)\approx(146,525)$ ~MeV and large volume $(La)^4=(96a)^4\approx$ (8.1 fm) $^4$ . Scattering phase shifts for $\Lambda N$ system are presented.

Keywords

hypernuclei and hypernuclear physics baryon physics lambda(1405) resonance photoproduction

Cite

@article{arxiv.2203.07661,
  title  = {Lambda-Nucleon and Sigma-Nucleon potentials from space-time correlation function on the lattice},
  author = {Hidekatsu Nemura},
  journal= {arXiv preprint arXiv:2203.07661},
  year   = {2022}
}

Comments

Talk presented at the 38th International Symposium on Lattice Field Theory, LATTICE2021, Zoom/Gather@Massachusetts Institute of Technology, July 26-30, 2021, 9 pages, 11 figures

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

Abstract

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