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Journal of High Energy Physics

, 2013:88 | Cite as

Real-virtual contributions to the inclusive Higgs cross-section at N3LO

  • Charalampos Anastasiou
  • Claude Duhr
  • Falko Dulat
  • Franz Herzog
  • Bernhard Mistlberger
Open Access
Article

Abstract

We compute the contributions to the N3LO inclusive Higgs boson cross-section from the square of one-loop amplitudes with a Higgs boson and three QCD partons as external states. Our result is a Taylor expansion in the dimensional regulator ϵ, where the coefficients of the expansion are analytic functions of the ratio of the Higgs boson mass and the partonic center of mass energy and they are valid for arbitrary values of this ratio. We also perform a threshold expansion around the limit of soft-parton radiation in the final state. The expressions for the coefficients of the threshold expansion are valid for arbitrary values of the dimension. As a by-product of the threshold expansion calculation, we have developed a soft expansion method at the integrand level by identifying the relevant soft and collinear regions for the loop-momentum.

Keywords

QCD Phenomenology NLO Computations 

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Copyright information

© SISSA 2013

Authors and Affiliations

  • Charalampos Anastasiou
    • 1
  • Claude Duhr
    • 2
  • Falko Dulat
    • 1
  • Franz Herzog
    • 3
  • Bernhard Mistlberger
    • 1
  1. 1.Institut für Theoretische Physik, ETH ZürichZürichSwitzerland
  2. 2.Institute for Particle Physics PhenomenologyUniversity of DurhamDurhamUnited Kingdom
  3. 3.CERN, Theory DivisionGeneva 23Switzerland

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