4.4 Article

The next-to-leading order Higgs impact factor in the infinite top-mass limit

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 8, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP08(2022)092

Keywords

Higgs Production; Higher-Order Perturbative Calculations; Resummation; Specific QCD Phenomenology

Funding

  1. INFN/NINPHA project
  2. INFN/QFT@COLLIDERS project
  3. Sobolev Institute of Mathematics [0314-2019-0021]

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This article calculates the next-to-leading order correction to the impact factor for the production of a forward Higgs boson in the infinite top-mass limit. The result is presented both in momentum representation and as a superposition of the eigenfunctions of the leading-order BFKL kernel. This impact factor is crucial for describing the inclusive hadroproduction of a forward Higgs in the small Bjorken x limit, as well as for studying the inclusive forward emissions of a Higgs boson in association with a backward identified object.
We calculate the next-to-leading order correction to the impact factor (vertex) for the production of a forward Higgs boson, obtained in the infinite top-mass limit. We present the result both in the momentum representation and as superposition of the eigenfunctions of the leading-order BFKL kernel. This impact factor is a necessary ingredient for the description of the inclusive hadroproduction of a forward Higgs in the limit of small Bjorken x, as well as for the study of inclusive forward emissions of a Higgs boson in association with a backward identified object.

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