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.

引用

页数：13

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