Work

Four-loop two-mass tadpoles and the $\rho$ parameter

Year: 2024

Type: conference-paper

Abstract: We calculate four-loop QCD corrections to the electroweak $\rho$ parameter with a non-vanishing $b$ quark mass. At three loops, it was observed that elliptic integrals contribute to this observable. This prompts the question of which classes of functions appear at the next order. We report on the status of our calculation with a focus on the mathematical structures that emerge at four loops.

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

DOI: 10.22323/1.467.0008

Authors: Arnd Behring, Samuel Abreu, Andrew McLeod, Ben Page

Institutions: Ghent University, European Organization for Nuclear Research, University of Edinburgh

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

OpenAlex ID: W4402614797

FWCI: 3.817

Cites:

Cited by: 2

Related to: 10