Journal of High Energy Physics | |
One-loop QCD contributions to differential cross-sections for Higgs production at N3LO | |
Caterina Specchia1  Charalampos Anastasiou1  | |
[1] 0000 0001 2156 2780, grid.5801.c, Institute for Theoretical Physics, ETH Zürich, 8093, Zürich, Switzerland; | |
关键词: NLO Computations; QCD Phenomenology; | |
DOI : 10.1007/JHEP05(2019)080 | |
来源: publisher | |
【 摘 要 】
We present one-loop contributions to the fully differential Higgs boson gluon-fusion cross-section for Higgs production via gluon fusion. Our results constitute a necessary ingredient of a complete N3LO determination of the cross-section. We perform our computation using a subtraction method for the treatment of soft and collinear singularities. We identify the infrared divergent parts in terms of universal splitting and eikonal functions, and demonstrate how phase-space integrations yield poles (up to 1/ε6) in the dimensional regulator ε = (4 − d)/2. We compute the coefficients of the ε expansion, including the finite part numerically. As a demonstration of our numerical implementation, we present the corrections at N3LO due to one-loop amplitudes in the rapidity and transverse momentum of the Higgs boson.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO202004237662526ZK.pdf | 495KB | download |