Magnetized color superconducting cold quark matter within the SU(2)${}_f$ NJL model: a novel regularization scheme

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.

28 pages, 7 figures

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