Magnetized color superconducting cold quark matter within the SU(2)f NJL model: A novel regularization scheme
P. Allen, A. G. Grunfeld, N. N. Scoccola
DOI 10.1103/PhysRevD.92.074041 · Physical Review D
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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 Nambu-Jona-Lasinio–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. In this way, a clearer interpretation of the physical oscillations is possible. The sensitivity of our results to the model parametrization is analyzed.
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