Spontaneous chiral symmetry breaking and mass gap of QCD in finite volume

Author:

Xiaolan Meng, Bolun Hu, Yi-Bo Yang

Keyword:

High Energy Physics - Lattice, High Energy Physics - Lattice (hep-lat), High Energy Physics - Phenomenology (hep-ph)

journal:

date:

2024-03-03 00:00:00

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 $L$, at $a\sim$ 0.055 fm. The results suggest that spontaneous chiral symmetry breaking is effectively restored at $L\le 1.0$ fm, while the gap between the nucleon and pion masses remains.

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