In the NJL model with experimental-constrained π-ρ mixing, direct determinant and near-pole mass extraction schemes reproduce the robust non-monotonic lowest charged pion mode in magnetic field while rest-mass and local schemes do not.
Chiral Properties of (2+1)-Flavor QCD in Magnetic Fields at Zero Temperature
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A Comparative Study of Mass Extraction Schemes and $\pi^\pm-\rho^\pm$ Mixing
In the NJL model with experimental-constrained π-ρ mixing, direct determinant and near-pole mass extraction schemes reproduce the robust non-monotonic lowest charged pion mode in magnetic field while rest-mass and local schemes do not.