Spontaneous chiral symmetry breaking and mass gap of QCD in finite volume
arXiv:2403.01378
Abstract
We present the lattice QCD simulation with the 2+1+1 flavor full QCD ensembles using near-physical quark masses and different spatial sizes , at 0.055 fm. The results suggest that spontaneous chiral symmetry breaking is effectively restored at fm, while the gap between the nucleon and pion masses remains.
4 pages, 9 figures