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题名: E2/M1 ratio of the Delta<->gamma N transition within the chiral constituent quark model
作者: Shen, PN ;  Dong, YB ;  Zhang, ZY ;  Yu, YW ;  Lee, TSH
刊名: PHYSICAL REVIEW C
出版日期: 1997
卷号: 55, 期号:4, 页码:2024-2029
关键词: PION-PHOTOPRODUCTION ;  ELECTROPRODUCTION ;  BARYONS ;  NUCLEON
学科分类: Physics
通讯作者: Shen, PN , ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA.
部门归属: CHINA CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; ARGONNE NATL LAB,DIV PHYS,ARGONNE,IL 60439
英文摘要: The chiral constituent quark model is applied to predict the magnetic M1 and electric E2 amplitudes of the Delta<->gamma N transition. It is found that the one-meson-exchange quark-quark potential due to the chiral fields enhances the E2/M1 ratio by a factor of about 2. The predicted M1+ amplitude and the E2/M1 ratio similar or equal to-1.0% are within the range determined from a recent analysis of the data of pion photoproduction.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12497
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Shen, PN,Dong, YB,Zhang, ZY,et al. E2/M1 ratio of the Delta<->gamma N transition within the chiral constituent quark model[J]. PHYSICAL REVIEW C,1997,55(4):2024-2029.
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