Complete two-loop corrections to H→γγ

2007/07/10 by Giampiero Passarino, Christian Sturm, Sandro Uccirati · 1 citation
Physics and Astronomy · #Algorithm #Amplitude #Black Holes and Theoretical Physics #Computer science #Electroweak interaction #Higgs boson #Invariant (physics) #Mathematical physics #Particle physics #Particle physics theoretical and experimental studies #Philosophy #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scroll #Theology #hep-ph

paper · pdf · doi:10.1016/j.physletb.2007.09.002

published as Phys.Lett.B655:298-306,2007 · 10 pages, 8 figures

arxiv created 2007/07/10 · openalex publication_date 2007/09/13 · arxiv updated 2009/12/01 · openalex created_date 2020/05/13 · openalex updated_date 2026/08/05

Abstract

In this paper the complete two-loop corrections to the Higgs-boson decay, H -> gamma gamma, are presented. The evaluations of both QCD and electroweak corrections are based on a numerical approach. The results cover all kinematical regions, including the WW normal-threshold, by introducing complex masses in the relevant (gauge-invariant) parts of the LO and NLO amplitudes.

Citations

• lsjk—a C++ library for arbitrary-precision numeric evaluation of the generalized log-sine functions
• New features of FORM
• Towards a measurement of the two-photon decay width of the Standard Model Higgs boson at a Photon Collider
• Algebraic-numerical evaluation of Feynman diagrams: two-loop self-energies
• Two-loop tensor integrals in quantum field theory
• Two-loop renormalization in the Standard Model. Part II: Renormalization procedures and computational techniques
• Two-loop vertices in quantum field theory: infrared convergent scalar configurations
• Two-loop renormalization in the Standard Model. Part I: Prolegomena

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