THE EXTENDED NAMBU-JONA-LASINIO MODEL WITH SEPARABLE INTERACTION - LOW-ENERGY PION PHYSICS AND PION-NUCLEON FORM-FACTOR

被引：64
作者：
ANIKIN, IV
IVANOV, MA
KULIMANOVA, NB
LYUBOVITSKIJ, VE
机构：
[1] Joint Institute for Nuclear Research, Dubna
来源：
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1995年 / 65卷 / 04期
关键词：
D O I：
10.1007/BF01578675
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
A Lagrangian formulation of the Nambu-Jona-Lasinio model with separable interaction is given. The electromagnetic interaction is introduced in a nonminimal way to the nonlocal quark current. Various choices of the vertex form factors characterizing the composite structure of mesons and baryon are investigated. We find that the physical observables depend very weakly on form factor shapes. We calculate the pi pi NN form factor considering nucleon as a three-quark system.
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页码：681 / 690
页数：10
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