Bosonic-type S-Matrix, Vacuum Instability and CDD Ambiguities

Details Bosonic-type S-Matrix, Vacuum Instability and CDD Ambiguities Bosonic-type S-Matrix, Vacuum Instability and CDD Ambiguities

1999-03-09

arxiv.org/abs/hep-th/9903072v3

Nucl.Phys. B578 (2000) 527-551

Physics

High Energy Physics

High Energy Physics - Theory

version to appear in Nucl. Phys. B

Scientific paper

10.1016/S0550-3213(99)00806-8

We consider the simplest bosonic-type S-matrix which is usually regarded as unphysical due to the complex values of the finite volume ground state energy. While a standard quantum field theory interpretation of such a scattering theory is precluded, we argue that the physical situation described by this S-matrix is of a massive Ising model perturbed by a particular set of irrelevant operators. The presence of these operators drastically affects the stability of the original vacuum of the massive Ising model and its ultraviolet properties.

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