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E2/M1 ratio of the Delta<->gamma N transition within the chiral constituent quark model
Shen, PN; Dong, YB; Zhang, ZY; Yu, YW; Lee, TSH; Shen, PN , ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA.
1997
发表期刊PHYSICAL REVIEW C
ISSN0556-2813
卷号55期号:4页码:2024-2029
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.
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
关键词Pion-photoproduction Electroproduction Baryons Nucleon
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12497
专题理论物理所1978-2010年知识产出
通讯作者Shen, PN , ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA.
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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.
APA Shen, PN,Dong, YB,Zhang, ZY,Yu, YW,Lee, TSH,&Shen, PN , ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA..(1997).E2/M1 ratio of the Delta<->gamma N transition within the chiral constituent quark model.PHYSICAL REVIEW C,55(4),2024-2029.
MLA Shen, PN,et al."E2/M1 ratio of the Delta<->gamma N transition within the chiral constituent quark model".PHYSICAL REVIEW C 55.4(1997):2024-2029.
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