Baryon interactions from lattice QCD with physical masses --- strangeness $S=-1$ sector ---

Abstract

We present our recent results of baryon interactions with strangeness $S=-1$ based on Nambu-Bethe-Salpeter (NBS) correlation functions calculated from lattice QCD with almost physical quark masses corresponding to $(m_{\pi },m_K)\approx (146,525)$ MeV and large volume $(La{)}^4=(96a{)}^4\approx$ (8.1 fm)${}^4$. In order to perform a comprehensive study of baryon interactions, a large number of NBS correlation functions from NN to $\Xi \Xi$ are calculated simultaneously by using large scale computer resources. In this contribution, we focus on the strangeness $S=-1$ channels of the hyperon interactions by means of HAL QCD method. Four sets of three potentials (the ${}^3{S}_1{-}^3{D}_1$ central, ${}^3{S}_1{-}^3{D}_1$ tensor, and the ${}^1{S}_0$ central potentials) are presented for the $\Sigma N-\Sigma N$ (the isospin $I=3/2$) diagonal, the $\Lambda N-\Lambda N$ diagonal, the $\Lambda N\to \Sigma N$ transition, and the $\Sigma N-\Sigma N$ ($I=1/2$) diagonal interactions. Scattering phase shifts for $\Sigma N$ $(I=3/2)$ system are presented.

Talk presented at the 35th International Symposium on Lattice Field Theory (Lattice 2017), 18-24 June 2017, Granada, Spain, 8 pages, 17 figures, references added, typos corrected, arXiv admin note: text overlap with arXiv:1702.00734

References in corpus (6)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Multi-messenger Observations of a Binary Neutron Star Merger
• Nuclear Force from Lattice QCD
• Unified contraction algorithm for multi-baryon correlators on the lattice

Cited by in corpus (19)

• Neutron Stars and the Nuclear Equation of State
• p-p, p-$\Lambda$ and $\Lambda$-$\Lambda$ correlations studied via femtoscopy in pp reactions at $\sqrt{s}$ = 7 TeV
• Hyperon-nucleon interaction within chiral effective field theory revisited
• Investigation of the p-${\Sigma }^0$ interaction via femtoscopy in pp collisions
• Hyperons: the strange ingredients of the nuclear equation of state
• Hyperon-nuclear interactions from SU(3) chiral effective field theory
• Hyperon-nucleon interaction in chiral effective field theory at next-to-next-to-leading order
• Little-Bang and Femto-Nova in Nucleus-Nucleus Collisions
• Strangeness $S=-1$ hyperon-nucleon interactions: chiral effective field theory vs. lattice QCD
• Strangeness $S=-2$ baryon-baryon interactions and femtoscopic correlation functions in covariant chiral effective field theory
• Towards baryon-baryon scattering in manifestly Lorentz-invariant formulation of SU(3) baryon chiral perturbation theory
• Lambda-nucleon scattering in baryon chiral perturbation theory
• Test of the hyperon-nucleon interaction within leading order covariant chiral effective field theory
• Hints of Entanglement Suppression in Hyperon-Nucleon Scattering
• Pion-mass dependence of the nucleon-nucleon interaction
• Exploring the ${\Sigma }^{+}p$ interaction by measurements of the correlation function
• Strange Nuclear Physics from QCD on Lattice
• Spectrum of two-flavored spin-zero heavy dibaryons in lattice QCD
• Hyperon-Nucleon Interaction from Lattice QCD at $(m_{\pi },m_K)\approx (146,525)$ MeV