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

被引：238
|
作者：
Menezes, D. P. [1 ]
Pinto, M. Benghi [1 ]
Avancini, S. S. [1 ]
Martinez, A. Perez [2 ]
Providencia, C. [3 ]
机构：
[1] Univ Fed Santa Catarina, CFM, Dept Fis, BR-88040900 Florianopolis, SC, Brazil
[2] Inst Cibernet Matemat & Fis ICIMAF, Havana 10400, Cuba
[3] Univ Coimbra, Dept Phys, Ctr Fis Computac, P-3004516 Coimbra, Portugal
来源：
PHYSICAL REVIEW C | 2009年 / 79卷 / 03期
关键词：
NEUTRON-STAR MATTER; DYNAMICAL MODEL; EMISSION; STABILITY; SURFACES; ANALOGY;
D O I：
10.1103/PhysRevC.79.035807
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
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. beta 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 (>= 10(18) G) affect the equation of state in a non-negligible way.
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页数：13
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