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arXiv · hep-th/0211174

Aspects of the Homogeneous Sine-Gordon models

Patrick Dorey·J. Luis Miramontes
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Abstract

The physical mass scales that determine the behaviour of general (simply-laced) Homogeneous Sine-Gordon models are investigated by means of a study of their finite-size effects, using the thermodynamic Bethe ansatz. These models describe integrable multiparameter perturbations of the theory of level-$k$ $G$-parafermions, where $G$ is a Lie group. The parameters can be related to adjustable mass scales of stable and unstable particles. Our results confirm the presence of unstable particle states at generic values of $k$, as predicted at large $k$ by semiclassical arguments.

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Patrick Dorey, J. Luis Miramontes. 2002-11-19. Aspects of the Homogeneous Sine-Gordon models. https://arxiv.org/abs/hep-th/0211174

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