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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