Two-loop SL(2) form factors and maximal transcendentality
文献类型：期刊论文
| 作者 | Loebbert, F; Sieg, C; Wilhelm, M; Yang, G ; Loebbert, F (reprint author), Humboldt Univ, Inst Phys, Grossen Windkanal 6, D-12489 Berlin, Germany.
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| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
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| 出版日期 | 2016 |
| 期号 | 12页码:90 |
| 关键词 | Scattering Amplitudes Conformal Field Theory Integrable Field Theories Supersymmetric Gauge Theory |
| DOI | http://dx.doi.org/10.1007/JHEP12(2016)090 |
| 英文摘要 | Form factors of composite operators in the SL(2) sector of N = 4 SYM theory are studied up to two loops via the on-shell unitarity method. The non-compactness of this subsector implies the novel feature and technical challenge of an unlimited number of loop momenta in the integrand's numerator. At one loop, we derive the full minimal form factor to all orders in the dimensional regularisation parameter. At two loops, we construct the complete integrand for composite operators with an arbitrary number of covariant derivatives, and we obtain the remainder functions as well as the dilatation operator for composite operators with up to three covariant derivatives. The remainder functions reveal curious patterns suggesting a hidden maximal uniform transcendentality for the full form factor. Finally, we speculate about an extension of these patterns to QCD. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21459]  |
| 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 | Loebbert, F (reprint author), Humboldt Univ, Inst Phys, Grossen Windkanal 6, D-12489 Berlin, Germany. |
| 推荐引用方式 GB/T 7714 | Loebbert, F,Sieg, C,Wilhelm, M,et al. Two-loop SL(2) form factors and maximal transcendentality[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(12):90. |
| APA | Loebbert, F,Sieg, C,Wilhelm, M,Yang, G,&Loebbert, F .(2016).Two-loop SL(2) form factors and maximal transcendentality.JOURNAL OF HIGH ENERGY PHYSICS(12),90. |
| MLA | Loebbert, F,et al."Two-loop SL(2) form factors and maximal transcendentality".JOURNAL OF HIGH ENERGY PHYSICS .12(2016):90. |
入库方式： OAI收割
来源：理论物理研究所
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