Quadrupole polarizabilities of the pion in the Nambu-Jona-Lasinio model

被引：4
|
作者：
Hiller, B. [2 ]
Broniowski, W. [3 ,4 ]
Osipov, A. A. [1 ,2 ]
Blin, A. H. [2 ]
机构：
[1] Joint Inst Nucl Res, Dzhelepov Lab Nucl Problems, Dubna 141980, Russia
[2] Univ Coimbra, Dept Fis, Ctr Fis Computac, P-3004516 Coimbra, Portugal
[3] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland
[4] Jan Kochanowski Univ Humanities & Sci, Inst Phys, PL-25406 Kielce, Poland
来源：
PHYSICS LETTERS B | 2009年 / 681卷 / 02期
关键词：
Pion polarizabilities; Chiral quark models; Nambu-Jona-Lasinio model; Chiral perturbation theory; HIGHER MULTIPOLE POLARIZABILITIES; PHOTON-PHOTON COLLISIONS; LOW-ENERGY; COMPTON-SCATTERING; DYNAMICAL MODEL; GAMMA; HADRONS; ANALOGY; LOOPS;
D O I：
10.1016/j.physletb.2009.10.018
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The electromagnetic dipole and quadrupole polarizabilities of the neutral and charged pions are calculated in the Nambu-Jona-Lasinio model. Our results agree with the recent experimental analysis of these quantities based on dispersion sum rules. Comparison is made with the results from the chiral perturbation theory. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：147 / 150
页数：4
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