Ezploring the light-quark interaction

摘要：

Two basic motivations for an upgraded JLab facility are the needs: to determine the essential nature of light-quark confinement and dynamical chiral symmetry breaking (DCSB); and to understand nucleon structure and spectroscopy in terms of QCDs elementary degrees of freedom. During the next ten years a programme of experiment and theory will be conducted that can address these questions. We present a Dyson-Schwinger equation perspective on this effort with numerous illustrations, amongst them: an interpretation of string-breaking; a symmetry-preserving truncation for mesons; the nucleons strangeness σ-term; and the neutrons charge distribution.

关键词： Bethe-Salpeter equations bound-states confinement dynamical chiral symmetry breaking Dyson-Schwinger equations Faddeev equation nucleon electromagnetic form factors

作者: CHANG Lei Ian C.CLO(E)T Bruno El-BENNICH Thomas KL(A)HN Craig D.ROBERTS

作者单位: Institute of Applied Physics and Computational Mathematics,Beijing 100094,China Department of Physics,University of Washington,Seattle WA 98195,USA Physics Division,Argonne National Laboratory,Argonne,Illinois 60439,USA Department of Physics,Peking University,Beijing 100871,China

会议类型: 国际会议

会议名称: The 12th International Workshop on the Physics Ezcited Nucleon(2009核子共振态物理国际研讨会)

会议地点: 北京

会议语种:英文

页码: 1189-1196

在线出版日期: 2009-04-19（万方平台首次上网日期，不代表论文的发表时间）