Preserving local gauge invariance with t-channel Regge exchange
文献类型：期刊论文
| 作者 | Haberzettl, H; Wang, XY; He, J |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2015 |
| 卷号 | 92期号:5页码:55503 |
| 通讯作者 | Haberzettl, H (reprint author), George Washington Univ, Inst Nucl Studies, Washington, DC 20052 USA. |
| 英文摘要 | Considering single-meson photo-and electroproduction off a baryon, it is shown how to restore local gauge invariance that was broken by replacing standard Feynman-type meson exchange in the t channel by exchange of a Regge trajectory. This is achieved by constructing a contact current whose four-divergence cancels the gauge-invariance-violating contributions resulting from all states above the base state on the Regge trajectory. To illustrate the procedure, modifications necessary for the process gamma + p -> K+ + Sigma(*0) are discussed in some detail. We also provide the general expression for the contact current for an arbitrary reaction. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear |
| 关键词[WOS] | PHOTOPRODUCTION ; NUCLEON ; LAMBDA ; PION |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/20789]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Haberzettl, H,Wang, XY,He, J. Preserving local gauge invariance with t-channel Regge exchange[J]. PHYSICAL REVIEW C,2015,92(5):55503. |
| APA | Haberzettl, H,Wang, XY,&He, J.(2015).Preserving local gauge invariance with t-channel Regge exchange.PHYSICAL REVIEW C,92(5),55503. |
| MLA | Haberzettl, H,et al."Preserving local gauge invariance with t-channel Regge exchange".PHYSICAL REVIEW C 92.5(2015):55503. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。