Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP06(2022)115
Keywords
Higher-Order Perturbative Calculations; Higgs Production; Higher Order Electroweak Calculations
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [396021762 - TRR 257]
- Royal Society University Research Fellow grant [URF\R1\201473]
- Royal Society [URF\R1\191125]
- Excellence Cluster ORIGINS - Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy [EXC-2094 - 390783311]
- ERC [949279]
- European Research Council (ERC) [949279] Funding Source: European Research Council (ERC)
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In this study, we calculate the two-loop mixed QCD-Electroweak corrections to important reactions, specifically focusing on the contribution of virtual light quarks. We compute the independent helicity amplitudes and form factors for this process, expressing them in terms of hyperlogarithms with algebraic arguments. The Feynman integrals are calculated through direct integration over Feynman parameters, and the results are presented using a basis of rational prefactors.
We compute the two-loop mixed QCD-Electroweak corrections to q (q) over bar -> Hg and its crossed channels qg -> Hq, (q) over barg -> H (q) over bar, limiting ourselves to the contribution of light virtual quarks. We compute the independent helicity amplitudes as well as the form factors for this process, expressing them in terms of hyperlogarithms with algebraic arguments. The Feynman integrals are computed by direct integration over Feynman parameters and the results are expressed in terms of a basis of rational prefactors.
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