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Article Dans Une Revue Journal of High Energy Physics Année : 2021

RG flows of integrable $\sigma$-models and the twist function

François Delduc
Sylvain Lacroix
  • Fonction : Auteur
Konstantinos Sfetsos
  • Fonction : Auteur
Konstantinos Siampos
  • Fonction : Auteur

Résumé

In the study of integrable non-linear σ-models which are assemblies and/or deformations of principal chiral models and/or WZW models, a rational function called the twist function plays a central rôle. For a large class of such models, we show that they are one-loop renormalizable, and that the renormalization group flow equations can be written directly in terms of the twist function in a remarkably simple way. The resulting equation appears to have a universal character when the integrable model is characterized by a twist function.

Dates et versions

hal-02987449 , version 1 (03-11-2020)

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Citer

François Delduc, Sylvain Lacroix, Konstantinos Sfetsos, Konstantinos Siampos. RG flows of integrable $\sigma$-models and the twist function. Journal of High Energy Physics, 2021, 02, pp.065. ⟨10.1007/JHEP02(2021)065⟩. ⟨hal-02987449⟩
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