Three-loop ladder diagrams with two off-shell legs

Abstract We present an analytic calculation of three-loop four-point Feynman integrals with two off-shell legs of equal mass. We provide solutions to the canonical differential equations of two integral families in both Euclidean and physical regions. They are validated numerically against independe...

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Main Author: Ming-Ming Long
Format: Article
Language:English
Published: SpringerOpen 2025-01-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP01(2025)018
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author Ming-Ming Long
author_facet Ming-Ming Long
author_sort Ming-Ming Long
collection DOAJ
description Abstract We present an analytic calculation of three-loop four-point Feynman integrals with two off-shell legs of equal mass. We provide solutions to the canonical differential equations of two integral families in both Euclidean and physical regions. They are validated numerically against independent computations. A total of 170 master integrals are expressed in terms of multiple polylogarithms up to weight six. Most of them are computed for the first time. Our results are essential ingredients of the scattering amplitudes for equal-mass diboson production at next-to-next-to-next-to-leading-order QCD at the LHC.
format Article
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institution Kabale University
issn 1029-8479
language English
publishDate 2025-01-01
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series Journal of High Energy Physics
spelling doaj-art-bb302c5520a94290b05bbdb113c8b10b2025-01-19T12:07:04ZengSpringerOpenJournal of High Energy Physics1029-84792025-01-012025112710.1007/JHEP01(2025)018Three-loop ladder diagrams with two off-shell legsMing-Ming Long0Institute for Theoretical Particle Physics, KITAbstract We present an analytic calculation of three-loop four-point Feynman integrals with two off-shell legs of equal mass. We provide solutions to the canonical differential equations of two integral families in both Euclidean and physical regions. They are validated numerically against independent computations. A total of 170 master integrals are expressed in terms of multiple polylogarithms up to weight six. Most of them are computed for the first time. Our results are essential ingredients of the scattering amplitudes for equal-mass diboson production at next-to-next-to-next-to-leading-order QCD at the LHC.https://doi.org/10.1007/JHEP01(2025)018Higher-Order Perturbative CalculationsSpecific QCD Phenomenology
spellingShingle Ming-Ming Long
Three-loop ladder diagrams with two off-shell legs
Journal of High Energy Physics
Higher-Order Perturbative Calculations
Specific QCD Phenomenology
title Three-loop ladder diagrams with two off-shell legs
title_full Three-loop ladder diagrams with two off-shell legs
title_fullStr Three-loop ladder diagrams with two off-shell legs
title_full_unstemmed Three-loop ladder diagrams with two off-shell legs
title_short Three-loop ladder diagrams with two off-shell legs
title_sort three loop ladder diagrams with two off shell legs
topic Higher-Order Perturbative Calculations
Specific QCD Phenomenology
url https://doi.org/10.1007/JHEP01(2025)018
work_keys_str_mv AT mingminglong threeloopladderdiagramswithtwooffshelllegs