Journal article
Two-loop mixed QCD-EW corrections to gg → Hg
- Abstract:
- We compute the two-loop mixed QCD-Electroweak (QCD-EW) corrections to the production of a Higgs boson and a gluon in gluon fusion through a loop of light quarks. The relevant four-point functions with internal massive propagators are expressed as multiple polylogarithms with algebraic arguments. We perform the calculation by integration over Feynman parameters and, independently, by the method of differential equations. We compute the two independent helicity amplitudes for the process and we find that they are both finite. Moreover, we observe a weight drop when all gluons have the same helicity. We also provide a simplified expression for the all-plus helicity amplitude, which is optimised for fast and reliable numerical evaluation in the physical region.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 608.7KB, Terms of use)
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- Publisher copy:
- 10.1007/jhep11(2020)045
Authors
- Publisher:
- Springer
- Journal:
- Journal of High Energy Physics More from this journal
- Volume:
- 2020
- Issue:
- 11
- Article number:
- 45
- Publication date:
- 2020-11-10
- DOI:
- EISSN:
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1029-8479
- Language:
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English
- Keywords:
- Pubs id:
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1146169
- Local pid:
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pubs:1146169
- Deposit date:
-
2020-11-20
Terms of use
- Copyright holder:
- Bonetti et al.
- Copyright date:
- 2020
- Rights statement:
- ©2020 The Authors.
- Notes:
- Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
- Licence:
- CC Attribution (CC BY)
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