Reconstruction of top-quark mass effects in Higgs pair production and other gluon-fusion processes

Gröber, Ramona; Maier, Andreas; Rauh, Thomas

Abstract

We propose a novel method for the treatment of top-quark mass effects in the production of H(∗), HH, HZ and ZZ final states in gluon fusion. We show that it is possible to reconstruct the full top-quark mass dependence of the virtual amplitudes from the corresponding large-mt expansion and the non-analytic part of the amplitude near the top-quark threshold ŝ = 4m t 2 with a Padé ansatz. The reliability of our method is clearly demonstrated by a comparison with the recent NLO result for Higgs pair production with full top-quark mass dependence.

Citation

Gröber, R., Maier, A., & Rauh, T. (2018). Reconstruction of top-quark mass effects in Higgs pair production and other gluon-fusion processes. Journal of High Energy Physics, 2018(3), Article 020. https://doi.org/10.1007/jhep03%282018%29020

• Journal Article Type: Article
• Acceptance Date: Feb 26, 2018
• Online Publication Date: Mar 6, 2018
• Publication Date: Jan 1, 2018
• Deposit Date: Mar 22, 2018
• Publicly Available Date: Mar 22, 2018
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2018
• Issue: 3
• Article Number: 020
• DOI: https://doi.org/10.1007/jhep03%282018%29020
• Public URL: https://durham-repository.worktribe.com/output/1331957