Real corrections to Higgs boson pair production at NNLO in the large top quark mass limit

Davies, Joshua, Herren, Florian, Mishima, Go and Steinhauser, Matthias (2022) Real corrections to Higgs boson pair production at NNLO in the large top quark mass limit. Journal of High Energy Physics, 2022. a49. ISSN 1126-6708

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Abstract

In this paper we consider the next-to-next-to-leading order total cross section of Higgs boson pair production in the large top quark mass limit and compute four expansion terms in 1/m2t. To this end, we analytically compute the real-virtual and double-real contributions to the total cross section and combine them with the existing virtual contribution. Good convergence is observed below the top quark threshold, which makes our results a valuable input for approximation methods which aim for next-to-next-to-leading order corrections over the whole kinematic range. We present details on various steps of our calculation; in particular, we provide results for three- and four-particle phase-space master integrals and describe in detail the evaluation of the collinear counterterms.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
SWORD Depositor: Mx Elements Account
Depositing User: Mx Elements Account
Date Deposited: 11 Nov 2022 14:43
Last Modified: 11 Nov 2022 14:45
URI: http://sro.sussex.ac.uk/id/eprint/109039

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