Dual description of η-deformed OSP sigma models
Abstract
We study the dual description of the η-deformed OSP(N|2m) sigma model in the asymptotically free regime (N > 2m + 2). Compared to the case of classical Lie groups, for supergroups there are inequivalent η-deformations corresponding to different choices of simple roots. For a class of such deformations we propose the system of screening charges depending on a continuous parameter b, which defines the η-deformed OSP(N|2m) sigma model in the limit b → ∞ and a certain Toda QFT as b → 0. In the sigma model regime we show that the leading UV asymptotic of the η-deformed model coincides with a perturbed Gaussian theory. In the perturbative regime b → 0 we show that the tree-level two-particle scattering matrix matches the expansion of the trigonometric OSP(N|2m) S-matrix.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- December 2020
- DOI:
- 10.1007/JHEP12(2020)040
- arXiv:
- arXiv:2010.11927
- Bibcode:
- 2020JHEP...12..040A
- Keywords:
-
- Integrable Field Theories;
- Sigma Models;
- High Energy Physics - Theory;
- Mathematical Physics
- E-Print:
- 46 pages, 16 figures