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

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3];  [4]
  1. Univ. of Sussex, Brighton (United Kingdom)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Tohoku Univ., Sendai (Japan)
  4. Karlsruhe Inst. of Technology (KIT) (Germany). Inst. für Theoretische Teilchenphysik

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$$ {m}_t^2 $$. 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.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); German Research Foundation (DFG); JSPS KAKENHI; Science and Technology Facilities Council (STFC)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1832806
Report Number(s):
FERMILAB-PUB--21-470-T; P3H--21-068; TTP21-034; TU-1133; arXiv:2110.03697; oai:inspirehep.net:1940681
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2022; ISSN 1029-8479
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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