Integrands of less-supersymmetric Yang-Mills at one loop
| Autor: | Jacob L. Bourjaily, Enrico Herrmann, Cameron Langer, Kokkimidis Patatoukos, Jaroslav Trnka, Minshan Zheng |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
ELECTRON-POSITRON ANNIHILATION
High Energy Physics - Theory Physics::Computational Physics Nuclear and High Energy Physics Mathematics::Classical Analysis and ODEs TREE AMPLITUDES FOS: Physical sciences Mathematics::Numerical Analysis Supersymmetric Gauge Theory UNITARITY ENERGY CORRELATIONS High Energy Physics - Theory (hep-th) JET CROSS-SECTIONS Scattering Amplitudes |
| Zdroj: | Journal of High Energy Physics Bourjaily, J L, Herrmann, E, Langer, C, Patatoukos, K, Trnka, J & Zheng, M 2022, ' Integrands of less-supersymmetric Yang-Mills at one loop ', Journal of High Energy Physics, vol. 2022, no. 3, 126 . https://doi.org/10.1007/JHEP03(2022)126 |
| DOI: | 10.1007/JHEP03(2022)126 |
| Popis: | We construct a prescriptive, bubble power-counting basis of one-loop integrands suitable for representing amplitude integrands in less-supersymmetric Yang-Mills theory. With the exception of massless bubbles, all integrands have unambiguous, leading singularities as coefficients defined in field theory; for the massless bubbles on external legs, we find two natural choices which lead to different integrands that highlight distinct aspects of field theory. For concreteness, we give the all-multiplicity integrands for MHV amplitudes, and the split-helicity amplitude integrand for six-particle NMHV. The basis we construct is mostly pure and is divided into to separately UV- and IR-finite sectors of fixed transcendental weight, resulting in UV- and IR-finite ratio functions of n-particle helicity amplitudes. Comment: 42 pages; 5 tables; dozens of figures. Analytic expressions for the basis and all-n MHV amplitudes are available in ancillary files |
| Databáze: | OpenAIRE |
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