Davies, Joshua; Gröber, Ramona; Maier, Andreas; Rauh, Thomas; Steinhauser, Matthias (18 February 2020). Padé approach to top-quark mass effects in gluon fusion amplitudes. PoS - proceedings of science, 375. Trieste, Italy: Scuola Internazionale Superiore di Studi Avanzati SISSA 10.22323/1.375.0079
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Gluon fusion processes like single and double Higgs production exhibit slow convergence and pose severe computational challenges. We show how the top-quark mass dependence of the virtual amplitudes can be reconstructed with a conformal mapping and Padé approximants based on the expansion in the inverse top-quark mass and the non-analytic terms in the expansion around the top threshold. The method is then applied at two- and three-loop order.
Item Type: |
Conference or Workshop Item (Paper) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Rauh, Thomas Johannes Georg |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1824-8039 |
Publisher: |
Scuola Internazionale Superiore di Studi Avanzati SISSA |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
15 Apr 2020 14:00 |
Last Modified: |
05 Dec 2022 15:37 |
Publisher DOI: |
10.22323/1.375.0079 |
ArXiv ID: |
1912.04097 |
BORIS DOI: |
10.7892/boris.141210 |
URI: |
https://boris.unibe.ch/id/eprint/141210 |
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