Nucleon-Nucleon Scattering From Fully-Dynamical Lattice QCD

TL;DR

This paper reports the first fully-dynamical lattice QCD calculations of nucleon-nucleon scattering lengths in specific channels, providing new insights into nuclear interactions from fundamental theory.

Contribution

It introduces the first fully-dynamical lattice QCD determination of nucleon-nucleon scattering lengths in key channels, advancing ab initio nuclear physics calculations.

Findings

Determined scattering lengths in the 1S0 channel.

Calculated scattering parameters in the 3S1-3D1 coupled channels.

Performed calculations with domain-wall valence quarks on MILC configurations.

Abstract

We present results of the first fully-dynamical lattice QCD determination of nucleon-nucleon scattering lengths in the 1S0 channel and 3S1-3D1 coupled channels. The calculations are performed with domain-wall valence quarks on the MILC staggered configurations with lattice spacing of b=0.125 fm in the isospin-symmetric limit, and in the absence of electromagnetic interactions.