RG flows and resonance scattering amplitudes

Details RG flows and resonance scattering amplitudes RG flows and resonance scattering amplitudes

1992-11-02

arxiv.org/abs/hep-th/9211010v1

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, SISSA-EP-154,(2 figures not included)

Scientific paper

We review recent progresses in the study of factorized resonance scattering S-matrices. The resonance amplitudes are introduced through a suitable analytical continuation of the ADE Toda S-matrices. By using the thermodynamic Bethe ansatz approach we are able to compute the ground state energy, which describes a rich pattern of flows interpolating between the central charges of the coset models based on the ADE Lie algebras. We also present the simplest resonance ``$\phi^3$'' scattering model and discuss its relation with new flows in non-unitary minimal models. Further generalizations are discussed in terms of certain asymptotic conditions in a family of ``resonance'' functional hierarchies.

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