Electromagnetic Properties of S11 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)
|
| 刊名 | 理论物理通讯(英文版)
 |
| 出版日期 | 2006 |
| 期号 | 10页码:269-274 |
| 关键词 | electromagntic properties S11 states light cone quark model |
| 通讯作者 | 何军 |
| 英文摘要 | Using relativistic spin-flavor wave functions of a Lorentz-covariant light cone quark model, we calculate the electromagnetic form factors of two S11 resonances, N（1535） and N（1650）, and the helicity amplitudes A1/2 and S1/2 for electroexcitation of the S11 resonances from the nucleon. The electromagnetic form factors of these S11 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 S11 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 A1/2P in both N（1535） and N（1650） eases at the photon point. A sizeable S1/2 for all cases is produced as suggested by experiments. |
| 收录类别 | CNKI |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/216097]  |
| 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. Electromagnetic Properties of S11 States in a Light Cone Quark Model[J]. 理论物理通讯(英文版),2006(10):269-274. |
| APA | 何军,&董宇兵.(2006).Electromagnetic Properties of S11 States in a Light Cone Quark Model.理论物理通讯(英文版)(10),269-274. |
| MLA | 何军,et al."Electromagnetic Properties of S11 States in a Light Cone Quark Model".理论物理通讯(英文版) .10(2006):269-274. |
入库方式： OAI收割
来源：高能物理研究所
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