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arXiv · 0811.3361

Quark matter under strong magnetic fields in the Nambu--Jona-Lasinio Model

D. P. Menezes·M. Benghi Pinto·S. S. Avancini·A. Perez Martinez·C. Providencia
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Abstract

In the present work we use the large-$N_c$ approximation to investigate quark matter described by the SU(2) Nambu--Jona-Lasinio model subject to a strong magnetic field. The Landau levels are filled in such a way that usual kinks appear in the effective mass and other related quantities. $β$-equilibrium is also considered and the macroscopic properties of a magnetar described by this quark matter is obtained. Our study shows that the magnetar masses and radii are larger if the magnetic field increases but only very large fields ($\ge 10^{18}$ G) affect the EoS in a non negligible way.

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D. P. Menezes, M. Benghi Pinto, S. S. Avancini, A. Perez Martinez, C. Providencia. 2008-11-20. Quark matter under strong magnetic fields in the Nambu--Jona-Lasinio Model. https://doi.org/10.1103/physrevc.79.035807

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