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Magnetized color superconducting cold quark matter within the SU(2)$_f$ NJL model: a novel regularization scheme
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abstract
The influence of intense magnetic fields on the behavior of color superconducting cold quark matter is investigated using an SU(2)$_f$ NJL-type model for which a novel regulation scheme is introduced. In such a scheme the contributions which are explicitly dependent on the magnetic field turn out to be finite and, thus, do not require to be regularized. As a result of this, nonphysical oscillations that might arise in the alternative regularization schemes previously used in the literature are naturally removed. The sensitivity of our results to the model parametrization is analyzed.
Forward citations
Cited by 4 Pith papers
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$\pi^0$-$\gamma$ mixing in the presence of a strong magnetic field
In the NJL model, π⁰-γ mixing under strong B fields affects only one polarization state and produces less than 15% change in pion mass and quark couplings up to 1 GeV²/e, at variance with earlier results.
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Topological susceptibility and axion properties in the presence of a strong magnetic field within the three-flavor NJL model
In a three-flavor NJL model, the topological susceptibility and axion self-coupling grow with magnetic field at low temperature and drop sharply at the chiral transition, with finite-density effects captured via a B-d...
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Thermomagnetic Effects of Quark Matter in the NJL Model: Application of Regularization Schemes
In the SU(3) NJL model, the choice among magnetic field-independent, soft cut-off, and Pauli-Villars regularization strongly changes pressure, specific heat, and sound speed of hot magnetized quark matter, and regular...
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Dense and Cold Magnetized Quark Matter: A Review of Magnetic-Field-Independent Regularization and the Medium Separation Scheme
Review of MFIR and MSS schemes showing the superconducting gap stays finite at high chemical potential in magnetized cold quark matter with no zero-temperature transition to normal phase.
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