E2/M1 ratio of the Delta<->gamma N transition within the chiral constituent quark model
文献类型:期刊论文
作者 | Lee, TSH; Shen, PN; Dong, YB; Zhang, ZY; Yu, YW; Shen, PN , ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA. |
刊名 | PHYSICAL REVIEW C
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出版日期 | 1997 |
卷号 | 55期号:4页码:2024-2029 |
关键词 | Pion-photoproduction Electroproduction Baryons Nucleon |
ISSN号 | 0556-2813 |
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. |
学科主题 | Physics |
URL标识 | 查看原文 |
公开日期 | 2012-08-29 |
源URL | [http://ir.itp.ac.cn/handle/311006/12497] ![]() |
专题 | 理论物理研究所_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. |
推荐引用方式 GB/T 7714 | Lee, TSH,Shen, PN,Dong, YB,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 | Lee, TSH,Shen, PN,Dong, YB,Zhang, ZY,Yu, YW,&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 | Lee, TSH,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. |
入库方式: OAI收割
来源:理论物理研究所
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