NJL-type models in the presence of intense magnetic fields: the role of the regularization prescription

Abstract

We study the regularization dependence of the Nambu-Jona--Lasinio model (NJL) predictions for some properties of magnetized quark matter at zero temperature (and baryonic density) in the mean field approximation. The model parameter dependence for each regularization procedure is also analyzed in detail. We calculate the average and difference of the quark condensates using different regularization methods and compare with recent lattice results. In this context, the reliability of the different regularization procedures is discussed.

15 pages, 9 figures, replaced with updated version matching the published one

References in corpus (10)

• Quantum field theory in a magnetic field: From quantum chromodynamics to graphene and Dirac semimetals
• Quark matter under strong magnetic fields in the Nambu--Jona-Lasinio Model
• The QCD equation of state in background magnetic fields
• The QCD phase diagram at nonzero quark density
• The Importance of Asymptotic Freedom for the Pseudocritical Temperature in Magnetized Quark Matter
• Color-flavor locked superconductor in a magnetic field
• Magnetic Susceptibility of the Quark Condensate and Polarization from Chiral Models
• Status of Lattice Studies of the QCD Phase Diagram
• Chiral symmetry in strongly interacting matter
• Effect of strong magnetic field on competing order parameters in two-flavor dense quark matter

Cited by in corpus (4)

• Charged pseudoscalar and vector meson masses under strong magnetic fields in an extended NJL model
• Medium separation scheme effects on the magnetized and cold two-flavor superconducting quark matter
• Polarization effects at finite temperature and magnetic field
• First-order CP phase transition in two-flavor QCD at $\theta =\pi$ under electromagnetic scale anomaly via a Nambu-Jona-Lasinio description