Comparison of the Linear Sigma Model and Chiral Perturbation Theory for Nucleon Properties

• 作者: Tarek Sayed Taha Ali
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: LINEAR SIGMA Model CHIRAL PERTURBATION Theory and Static NUCLEON PROPERTIES
• 年，卷（期）: 2013,（11）
• 页码范围: 1471-1475
• 页数: 5页
• 分类号: O57

摘要

We compare the static nucleon properties in the Chiral Perturbation Theory (χPT) and the Linear Sigma Model (LSM). We consider a chiral model for the nucleon which is based on the linear sigma model with scalar-isoscalar and scalarisovector mesons coupled to quarks. We have solved the field equations in the mean field approximation for the hedgehog baryon state with different sets of model parameters. A good investigation of some static nucleon properties is obtained by the LSM.