Exploring the light-quark interaction

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 QCD＇s elementary degrees of freedom. During the next ten yea...

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Bibliographic Details
Published in:Chinese physics C 2009-12, Vol.33 (12), p.1189-1196
Main Author: 常雷 lan C. CLOET Bruno E1-BENNICH Thomas KLAHN Craig D. ROBERTS
Format: Article
Language:English
Subjects:
夸克禁闭
手征对称性
核子结构
理论课程
电荷分布
相互作用
轻夸克
量子色动力学
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Summary: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 QCD＇s 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 nucleon＇s strangeness σ-term; and the neutron＇s charge distribution.
ISSN:1674-1137
0254-3052
2058-6132
DOI:10.1088/1674-1137/33/12/022