期刊信息

  • 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
  • 主办: 河北师范大学
  • ISSN: 1000-5854
  • CN: 13-1061/N
  • 中国科技核心期刊
  • 中国期刊方阵入选期刊
  • 中国高校优秀科技期刊
  • 华北优秀期刊
  • 河北省优秀科技期刊

唯象理论中的受激重子

  • 河海大学理学院 江苏 南京 210024
  • DOI:

Excited Baryons in Phenomenological Theory

摘要/Abstract

摘要:

研究了夸克约束的重子受激态和手征对称破缺.首先讨论了空间变形的重子激发.作为形变的信息,讨论质量和电磁跃迁.这样的空间结构的讨论给出关于夸克结合机制和夸克约束的信息.然后考虑了重子的手征对称性,并研究正负宇称的重子.可以表明存在重子的2种手征对称性的不同表示.按照线性σ模型的项研究它们唯象的结果.

Abstract:

It is studied Baryon excited states for quark confinement and chiral symmetry breaking.Spatially deformed baryon excitations are firstly discussed. As marks of deformation, masses and electromagnetic transitions are investigated in detail. Such a study of spatial structure is expected to provide information on quark binding mechanism and hence quark confinement. In terms of a deformed oscillator quark model the jeformed baryons was studied. Then consided the chiral symmetry for laryons and studied positive and negative parity baryons, N and N*. It can be displayed there are two distinctive repre-sentations of chiral symmetry for baryons. Investigated masses,pion-NN* couplings and charges of N and N* using linear sigma model.