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arXiv · hep-th/9308057

Stress-Energy Tensor and Ultraviolet Behaviour in Massive Integrable Quantum Field Theories

G. Mussardo·P. Simonetti
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Abstract

The short distance behaviour of massive integrable quantum field theories is analyzed in terms of the form factor approach. We show that the on-shell dynamics is compatible with different definitions of the stress-energy tensor $T_{μν}(x)$ of the theory. In terms of form factors, this is equivalent to having a possible non-zero matrix element $F_1$ of the trace of $T_{μν}$ on one-particle state. Each choice of $F_1$ induces a different scaling behaviour of the massive theory in the ultraviolet limit.

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G. Mussardo, P. Simonetti. 1993-08-12. Stress-Energy Tensor and Ultraviolet Behaviour in Massive Integrable Quantum Field Theories. https://doi.org/10.1142/s0217751x94001308

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