NLO electroweak corrections in extended Higgs sectors with RECOLA2

• Published in: The journal of high energy physics Vol. 2017; no. 7; pp. 1 - 52
• Main Authors: Denner, Ansgar, Lang, Jean-Nicolas, Uccirati, Sandro
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-07-2017; Springer Nature B.V; SpringerOpen
• Subjects: Classical and Quantum Gravitation; Cross-sections; Electroweak model; Elementary Particles; High energy physics; Mathematical models; NLO Computations; Phenomenological Models; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quarks; Regular Article - Theoretical Physics; Relativity Theory; Software; String Theory; NLO Computations; Phenomenological Models
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP07(2017)087

A
bstract
We present the computer code RECOLA2 along with the first NLO electroweak corrections to Higgs production in vector-boson fusion and updated results for Higgs strahlung in the Two-Higgs-Doublet Model and Higgs-Singlet extension of the Standard Model. A fully automated procedure for the generation of tree-level and one-loop matrix elements in general models, including renormalization, is presented. We discuss the application of the Background-Field Method to the extended models. Numerical results for NLO electroweak cross sections are presented for different renormalization schemes in the Two-Higgs-Doublet Model and the Higgs-Singlet extension of the Standard Model. Finally, we present distributions for the production of a heavy Higgs boson.