electromagnetic form factors;
light-cone quark model;
spin-O mesons;
spin-1/2;
baryons;
D O I:
10.1016/0375-9474(95)00503-X
中图分类号:
O57 [原子核物理学、高能物理学];
学科分类号:
070202 ;
摘要:
A constituent quark model is developed for an arbitrary light-cone direction so that the light-front time is x(LF)(+) = omega . x with a constant lightlike four-vector omega. Form factors are obtained from free one-body electromagnetic current matrix elements. They are found to be omega-independent for spin-O mesons, nucleons and the Lambda-hyperon, while there is an omega-dependence for spin-1 systems like the deuteron.
机构:
Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
Chen, Dian-Yong
Dong, Yu-Bing
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h-index: 0
机构:
Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Chinese Acad Sci, Ctr Theoret Phys, Sci Facil, Beijing 100049, Peoples R ChinaChinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
机构:
Natl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R ChinaNatl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China
Liu, Yong-Lu
Cui, Chun-Yu
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机构:
Third Mil Med Univ, Sch Biomed Engn, Dept Phys, Chongqing 400038, Peoples R ChinaNatl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China
Cui, Chun-Yu
Huang, Ming-Qiu
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h-index: 0
机构:
Natl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R ChinaNatl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China