Constraining the strength of $U(1)_A$ symmetry breaking using 2-flavour non-local NJL model
Mahammad Sabir Ali, Chowdhury Aminul Islam, Rishi Sharma
TL;DR
This paper uses a non-local two-flavor NJL model to analyze and constrain the strength of $U(1)_A$ symmetry breaking by comparing model predictions with lattice QCD data, focusing on topological susceptibility.
Contribution
It introduces a systematic method to constrain the 't Hooft determinant term strength using lattice QCD data within a non-local NJL framework.
Findings
Constrained the 't Hooft determinant term strength based on lattice QCD data.
Calculated topological susceptibility consistent with lattice results.
Validated the non-local NJL model's effectiveness in studying axial symmetry breaking.
Abstract
In presence of magnetic field we have done a systematic analysis to constrain the strength of 't Hooft determinant term using LQCD data within a non-local version of two flavour NJL model. Topological susceptibility, being related to the axial symmetry, have also been calculated and compared with LQCD results to further validate our calculation.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies