Work

On loop corrections to integrable 2D sigma model backgrounds

Year: 2022

Type: article

Abstract: We study regularization scheme dependence of β-function for sigma models with two-dimensional target space. Working within four-loop approximation, we conjecture the scheme in which the β-function retains only two tensor structures up to certain terms containing ζ3. Using this scheme, we provide explicit solutions to RG flow equation corresponding to Yang-Baxter- and λ-deformed SU(2)/U(l) sigma models, for which these terms disappear.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep01(2022)043

Authors: Mikhail Alfimov, Alexey Litvinov

Institutions: National Research University Higher School of Economics, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Skolkovo Institute of Science and Technology, Landau Institute for Theoretical Physics

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Basis Foundation

OpenAlex ID: W3207664182