Renormalization and running in the 2D CP (1) model

Renormalization and running in the 2D CP (1) model

Abstract We calculate the scattering amplitude in the two dimensional CP (1) model in a regularization scheme independent way. When using cutoff regularization, a new Feynman rule from the path integral measure is required if one is to preserve the symmetry. The physical running of the coupling with...

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Bibliographic Details
Main Authors: Diego Buccio, John F. Donoghue, Gabriel Menezes, Roberto Percacci
Format: Article
Language:English
Published: SpringerOpen 2025-02-01
Series:Journal of High Energy Physics
Subjects:
Field Theories in Lower Dimensions
Renormalization and Regularization
Renormalization Group
Sigma Models
Online Access:https://doi.org/10.1007/JHEP02(2025)146

Internet

https://doi.org/10.1007/JHEP02(2025)146

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