Abstract
We introduce high-energy limits which allow us to derive recursion relations fixing the various couplings of Lagrangians of two-dimensional relativistic quantum field theories with no tree-level particle production in a very straightforward way. The sine-Gordon model, the Bullough-Dodd theory, Toda theories of various kinds and the U(N) non-linear sigma model can all be rediscovered in this way. The results here were the outcome of our explorations at the 2017 Perimeter Institute Winter School.
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ArXiv ePrint: 1803.03578
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Gabai, B., Mazáč, D., Shieber, A. et al. No particle production in two dimensions: recursion relations and multi-Regge limit. J. High Energ. Phys. 2019, 94 (2019). https://doi.org/10.1007/JHEP02(2019)094
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DOI: https://doi.org/10.1007/JHEP02(2019)094