Charged pion masses under strong magnetic fields in the NJL model

被引：43
|
作者：
Coppola, M. [1 ,2 ]
Gomez Dumm, D. [3 ]
Scoccola, N. N. [1 ,2 ,4 ]
机构：
[1] Consejo Nacl Invest Cient & Tecn, Rivadavia 1917, RA-1033 Buenos Aires, DF, Argentina
[2] Comis Nacl Energia Atom, Phys Dept, Ave Libertador 8250, RA-1429 Buenos Aires, DF, Argentina
[3] Univ Nacl La Plata, Fac Cs Exactas, Dept Fis, CONICET,IFLP, CC 67, RA-1900 La Plata, Argentina
[4] Univ Favaloro, Solis 453, RA-1078 Buenos Aires, DF, Argentina
来源：
PHYSICS LETTERS B | 2018年 / 782卷
关键词：
JONA-LASINIO MODEL;
D O I：
10.1016/j.physletb.2018.04.043
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The behavior of charged pion masses in the presence of a static uniform magnetic field is studied in the framework of the two-flavor NJL model, using a magnetic field-independent regularization scheme. Analytical calculations are carried out employing the Ritus eigenfunction method, which allows us to properly take into account the presence of Schwinger phases in the quark propagators. Numerical results are obtained for definite model parameters, comparing the predictions of the model with present lattice QCD results. (C) 2018 The Authors. Published by Elsevier B.V.
引用
收藏
页码：155 / 161
页数：7
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