Multi-nucleon bound states in $N_f=2+1$ lattice QCD

TL;DR

This paper discusses ongoing efforts in lattice QCD to compute properties of light nuclei directly from quarks and gluons, focusing on strategies to approach physical quark masses and reporting progress at different pion masses.

Contribution

It introduces a strategy for fixing strange quark mass and gradually approaching physical up and down quark masses in lattice QCD calculations of light nuclei.

Findings

Successful calculation at pion mass 0.51 GeV

Progress reported at pion mass 0.30 GeV

Methodology for approaching physical quark masses

Abstract

We report on our on-going effort to calculate the properties of light nuclei directly from quarks and gluons based on lattice QCD. After briefly introducing our motivations and aims, we describe our strategy of fixing the strange quark mass at its physical value and approaching the physical point for the up and down quark masses step by step from the region of heavy quark masses. A successful calculation for the pion mass of 0.51GeV is reviewed, and the status for a lighter pion mass of 0.30GeV is reported.