Electromagnetic properties of S-11 states in a light cone quark model
文献类型：期刊论文
| 作者 | He J(何军); Dong YB(董宇兵) ; He, J; Dong, YB
|
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2006 |
| 卷号 | 46期号:2页码:#REF! |
| 关键词 | electromagntic properties S-11 states light cone quark model |
| 通讯作者 | He, J (reprint author), Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100049, Peoples R China. |
| 英文摘要 | Using relativistic spin-flavor wave functions of a L'orentz-covariant light cone quark model, we calculate the electromagnetic form factors of two S-11 resonances, N(1535) and N(1650), and the helicity amplitudes A(1/2), and S-1/2 for electroexcitation of the S-11 resonances from the nucleon. The electromagnetic form factors of these S-11 resonances are found to be similar to those of the nucleon in shape, while the charge form factor of neutral N(1650) is nearly zero. The relative peak height of the S-11 charge form factors is controlled by the mixing angle common to both resonance wave functions. As in most quark models, there is a systematic overestimate of A(1/2)p in both N(1535) and N(1650) cases at the photon point. A sizeable S-1/2 for all cases is produced as suggested by experiments. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| WOS记录号 | WOS:000240123000018 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/227303]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | He J,Dong YB,He, J,et al. Electromagnetic properties of S-11 states in a light cone quark model[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2006,46(2):#REF!. |
| APA | 何军,董宇兵,He, J,&Dong, YB.(2006).Electromagnetic properties of S-11 states in a light cone quark model.COMMUNICATIONS IN THEORETICAL PHYSICS,46(2),#REF!. |
| MLA | 何军,et al."Electromagnetic properties of S-11 states in a light cone quark model".COMMUNICATIONS IN THEORETICAL PHYSICS 46.2(2006):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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