Work

NNLO corrections to Z+H production at lepton colliders

Year: 2024

Type: conference-paper

Abstract: A technique for computing electroweak next-to-next-to-leading order (NNLO) corrections with arbitrary masses is described. It is based on using a dispersion relation and Feynman parameters for one of the two subloops and leads to low-dimensional numerical integrals for any $2\to2$ scattering process. UV divergencies can be treated with suitable subtraction terms. As a concrete phenomenological application, the calculation of electroweak NNLO corrections with closed fermion loops to the process $e^+e^- \to ZH$ is discussed.

Source: Loops and Legs in Quantum Field Theory (LL)

DOI: 10.22323/1.467.0001

Authors: Ayres Freitas, Qian Song

Institutions: Ghent University, University of Pittsburgh

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: National Science Foundation

Award: Investigations in High Energy Physics