Phase structure of cold magnetized color superconducting quark matter

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, non-physical oscillations that arise from regularizing magnetic field dependent terms are naturally removed, and oscillations that are actually physical can be better appreciated. The phase diagrams in the e-tilde B – μ plane are presented for different values of the diquark coupling. (paper)