Different origins of running in the 2D C P ( 1 ) model
Year: 2024
Type: article
Abstract: We revisit the computation of the beta function in the two-dimensional CP ( 1 ) sigma model. We show that in different schemes, different diagrams are responsible for the running, such as momentum-independent tadpoles or even UV-finite bubble diagrams. We also comment on the relation between the beta functions and the energy dependence of scattering amplitudes. Published by the American Physical Society 2024
Authors: Kasra Kiaee, Alexander Monin
Institution: University of South Carolina
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funder: National Science Foundation
OpenAlex ID: W4404138345