Lattice study of the chiral properties of large N_c QCD

2023/09/21 by Thomas DeGrand, DeGrand, Thomas, Evan Wickenden +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2309.12270

openalex publication_date 2023/09/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We present a lattice calculation of the low energy constants of QCD with N_c=3, 4 and 5 colors and N_f=2 flavors of degenerate mass fermions. We fit data for the pseudoscalar meson mass, the pseudoscalar decay constant, and the Axial Ward Identity fermion mass to formulas from next to next to leading order chiral perturbation theory. We extract the next to leading order low energy constants and study their behavior as a function of N_c. Pre-existing analyses of N_c=3 inform our fitting strategies.

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