Header

UZH-Logo

Maintenance Infos

Two-loop splitting amplitudes and the single-real contribution to inclusive Higgs production at N$^{3}$LO


Duhr, Claude; Gehrmann, Thomas; Jaquier, Matthieu (2015). Two-loop splitting amplitudes and the single-real contribution to inclusive Higgs production at N$^{3}$LO. Journal of High Energy Physics, 2015(2):77.

Abstract

The factorisation of QCD matrix elements in the limit of two external partons becoming collinear is described by process-independent splitting amplitudes, which can be expanded systematically in perturbation theory. Working in conventional dimensional regularisation, we compute the two-loop splitting amplitudes for all simple collinear splitting processes, including subleading terms in the regularisation parameter. Our results are then applied to derive an analytical expression for the two-loop single-real contribution to inclusive Higgs boson production in gluon fusion to fourth order (N$^{3}$LO) in perturbative QCD.

Abstract

The factorisation of QCD matrix elements in the limit of two external partons becoming collinear is described by process-independent splitting amplitudes, which can be expanded systematically in perturbation theory. Working in conventional dimensional regularisation, we compute the two-loop splitting amplitudes for all simple collinear splitting processes, including subleading terms in the regularisation parameter. Our results are then applied to derive an analytical expression for the two-loop single-real contribution to inclusive Higgs boson production in gluon fusion to fourth order (N$^{3}$LO) in perturbative QCD.

Statistics

Citations

14 citations in Web of Science®
13 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

20 downloads since deposited on 12 Feb 2016
12 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2015
Deposited On:12 Feb 2016 16:38
Last Modified:15 Sep 2017 11:16
Publisher:Springer
ISSN:1029-8479
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/JHEP02(2015)077
Other Identification Number:arXiv:1411.3587v1

Download

Download PDF  'Two-loop splitting amplitudes and the single-real contribution to inclusive Higgs production at N$^{3}$LO'.
Preview
Content: Published Version
Filetype: PDF
Size: 1MB
View at publisher
Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)