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Title: Higgs boson gluon-fusion production beyond threshold in N3LO QCD

In this study, we compute the gluon fusion Higgs boson cross-section at N3LO through the second term in the threshold expansion. This calculation constitutes a major milestone towards the full N3LO cross section. Our result has the best formal accuracy in the threshold expansion currently available, and includes contributions from collinear regions besides subleading corrections from soft and hard regions, as well as certain logarithmically enhanced contributions for general kinematics. We use our results to perform a critical appraisal of the validity of the threshold approximation at N3LO in perturbative QCD.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5] ;  [1]
  1. Institute for Theoretical Physics, Zurich (Switzerland)
  2. Univ. Catholique de Louvain, Louvain-La-Neuve (Belgium)
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  4. Univ. Zurich, Zurich (Switzerland)
  5. Nikhef, Amsterdam (The Netherlands); CERN, Geneva (Switzerland)
Publication Date:
OSTI Identifier:
1226305
Report Number(s):
FERMILAB-PUB--14-461-T
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1411.3584; TRN: US1500554
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2015; Journal Issue: 3; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS QCD phenomenology; NLO computations