2012/08/08 by Alexey Pak, Matthias Steinhauser, Nikolai Zerf · 1 citation
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Boson #Feynman diagram #Gauge (firearms) #Gluon #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Mathematical physics #Mathematics #Minimal Supersymmetric Standard Model #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum chromodynamics #Standard Model (mathematical formulation) #Statistics #Supersymmetry #hep-ph
paper · pdf · doi:10.1007/jhep09(2012)118
37 pages
arxiv created 2012/08/08 · openalex publication_date 2012/09/01 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We compute the total cross section for the production of a light CP even Higgs boson within the framework of supersymmetric QCD up to next-to-next-to-leading order. Technical subtleties in connection to the evaluation of three-loop Feynman integrals with many mass scales are discussed in detail and explicit results for the counterterms of the evanescent couplings are provided. The new results are applied to several phenomenological scenarios which are in accordance with the recent discovery at the LHC. In a large part of the still allowed parameter space the K factor of the supersymmetric theory is close to the one of the Standard Model. However, for the case where one of the top squarks is light, a deviation of more than 5% in the next-to-next-to-leading order prediction of the cross section can be observed where at the same time the predicted Higgs boson mass has a value of about 125 GeV.