Form factors in RQM approaches: Constraints from space-time translations
文献类型：期刊论文
| 作者 | Desplanques, B; Dong YB(董宇兵) ; Dong, YB
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| 刊名 | EUROPEAN PHYSICAL JOURNAL A
 |
| 出版日期 | 2008 |
| 卷号 | 37期号:1页码:#REF! |
| 通讯作者 | Desplanques, B (reprint author), Univ Grenoble 1, LPSC, CNRS, IN2P3,INPG, F-38026 Grenoble, France. |
| 英文摘要 | Different relativistic quantum-mechanic approaches have recently been used to calculate properties of various systems, form factors in particular. It is known that predictions, which most often rely on a single-particle current approximation, can lead to predictions with a very large range. It was shown that accounting for constraints related to space-time translations could considerably reduce this range. It is shown here that predictions can be made identical for a large range of cases. These ones include the following approaches: instant form, front form, and "point form" in arbitrary momentum configurations and a dispersion-relation approach which can be considered as the approach which the other ones should converge to. This important result supposes both an implementation of the above constraints and an appropriate single-particle-like current. The change of variables that allows one to establish the equivalence of the approaches is given. Some points are illustrated with numerical results for the ground state of a system consisting of scalar particles. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear ; Physics, Particles & Fields |
| 收录类别 | SCI |
| WOS记录号 | WOS:000258300000004 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/225636]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Desplanques, B,Dong YB,Dong, YB. Form factors in RQM approaches: Constraints from space-time translations[J]. EUROPEAN PHYSICAL JOURNAL A,2008,37(1):#REF!. |
| APA | Desplanques, B,董宇兵,&Dong, YB.(2008).Form factors in RQM approaches: Constraints from space-time translations.EUROPEAN PHYSICAL JOURNAL A,37(1),#REF!. |
| MLA | Desplanques, B,et al."Form factors in RQM approaches: Constraints from space-time translations".EUROPEAN PHYSICAL JOURNAL A 37.1(2008):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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