The Higgs transverse momentum spectrum with finite quark masses beyond leading order

Caola, Fabrizio; Forte, Stefano; Marzani, Simone; Muselli, Claudio; Vita, Gherardo

Abstract

We apply the leading-log high-energy resummation technique recently derived by some of us to the transverse momentum distribution for production of a Higgs boson in gluon fusion. We use our results to obtain information on mass-dependent corrections to this observable, which is only known at leading order when exact mass dependence is included. In the low p T region we discuss the all-order exponentiation of collinear bottom mass logarithms. In the high p T region we show that the infinite top mass approximation loses accuracy as a power of p T, while the accuracy of the high-energy approximation is approximately constant as p T grows. We argue that a good approximation to the NLO result for p T ≳ 200 GeV can be obtained by combining the full LO result with a K-factor computed using the high-energy approximation.

Citation

Caola, F., Forte, S., Marzani, S., Muselli, C., & Vita, G. (2016). The Higgs transverse momentum spectrum with finite quark masses beyond leading order. Journal of High Energy Physics, 2016(8), Article 150. https://doi.org/10.1007/jhep08%282016%29150

• Journal Article Type: Article
• Acceptance Date: Aug 7, 2016
• Online Publication Date: Aug 24, 2016
• Publication Date: Aug 24, 2016
• Deposit Date: Nov 24, 2017
• Publicly Available Date: Jan 17, 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: 2016
• Issue: 8
• Article Number: 150
• DOI: https://doi.org/10.1007/jhep08%282016%29150
• Public URL: https://durham-repository.worktribe.com/output/1343746