Deciphering the maximal transcendentality principle via bootstrap
文献类型：期刊论文
| 作者 | Guo, Yuanhong2; Jin, Qingjun3; Wang, Lei2; Yang, Gang2,4,5
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| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
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| 出版日期 | 2022 |
| 期号 | 9页码:161 |
| ISSN号 | 1029-8479 |
| 关键词 | 2-LOOP MASTER INTEGRALS SUDAKOV FORM-FACTOR ANALYTIC CONTINUATION RENORMALIZATION-GROUP ASYMPTOTIC-BEHAVIOR LOOP AMPLITUDES QCD ALGORITHM UNITARITY |
| DOI | 10.1007/JHEP09(2022)161 |
| 英文摘要 | We prove the principle of maximal transcendentality for a class of form factors, including the general two-loop minimal form factors, the two-loop three-point form factor of tr(F-2), and the two-loop four-point form factor of tr(F-3). Our proof is based on a recently developed bootstrap method using the representation of master integral expansions, together with some unitarity cuts that are universal in general gauge theories. The maximally transcendental parts of the two-loop four-gluon form factor of tr(F-3) are obtained for the first time in both planar N = 4 SYM and pure YM theories. This form factor can be understood as the Higgs-plus-four-gluon amplitudes involving a dimension-seven operator in the Higgs effective theory. In this case, we find that the maximally transcendental part of the N = 4 SYM result is different from that of pure YM, and the discrepancy is due to the gluino-loop contributions in N = 4 SYM. In contrast, the scalar-loop contributions have no maximally transcendental parts. Thus, the maximal transcendentality principle still holds for the form factor results in N = 4 SYM and QCD, after a proper identification of the fundamental quarks and adjoint gluinos as n(f) -> 4N(c). This seems to be the first example of the maximally transcendental principle that involves fermion-loop contributions. As another intriguing observation, we find that the four-point form factor of the half-BPS tr(phi(3)) operator is precisely a building block in the form factor of tr(F-3). |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27725]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 4.China Acad Engn Phys, Grad Sch, 10 Xibeiwang East Rd, Beijing 100193, Peoples R China 5.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Yuanhong,Jin, Qingjun,Wang, Lei,et al. Deciphering the maximal transcendentality principle via bootstrap[J]. JOURNAL OF HIGH ENERGY PHYSICS,2022(9):161. |
| APA | Guo, Yuanhong,Jin, Qingjun,Wang, Lei,&Yang, Gang.(2022).Deciphering the maximal transcendentality principle via bootstrap.JOURNAL OF HIGH ENERGY PHYSICS(9),161. |
| MLA | Guo, Yuanhong,et al."Deciphering the maximal transcendentality principle via bootstrap".JOURNAL OF HIGH ENERGY PHYSICS .9(2022):161. |
入库方式： OAI收割
来源：理论物理研究所
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