Chiral symmetry of QCD with twelve light flavors

TL;DR

This paper investigates whether chiral symmetry is restored in QCD with twelve light flavors by analyzing the meson spectrum and order parameters, providing evidence for symmetry restoration at certain coupling values.

Contribution

It offers a model-independent analysis of the meson spectrum and compares results with different theoretical models to determine the phase of chiral symmetry in twelve-flavor QCD.

Findings

Results favor chiral symmetry restoration at intermediate couplings.

Analysis contrasts Goldstone and symmetric phase models.

Provides insights into the phase structure of multi-flavor QCD.

Abstract

We study QCD with twelve light flavors at intermediate values of the bare lattice coupling. We contrast the results for the order parameter with different theoretical models motivated by the physics of the Goldstone phase and of the symmetric phase, and we perform a model independent analysis of the meson spectrum inspired by universal properties of chiral symmetry. Our analysis favors chiral symmetry restoration.