On β-function of N = 2 supersymmetric integrable sigma-models
Abstract
We study the regularization scheme dependence of Kähler (N = 2) supersymmetric sigma models. At the one-loop order the metric β function is the same as in the non-supersymmetric case and it coincides with the Ricci tensor. The first correction in the MS scheme is known to appear in the fourth loop [1, 2]. We show that for certain integrable Kähler backgrounds, such as the complete T-dual of η-deformed CP (n ) sigma models, there is a scheme in which the fourth loop contribution vanishes.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- May 2024
- DOI:
- 10.1007/JHEP05(2024)297
- arXiv:
- arXiv:2311.14187
- Bibcode:
- 2024JHEP...05..297A
- Keywords:
-
- Integrable Field Theories;
- Renormalization Group;
- Sigma Models;
- High Energy Physics - Theory