Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP02(2019)094
Keywords
Integrable Field Theories; Scattering Amplitudes; Field Theories in Lower Dimensions
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Funding
- Government of Canada through NSERC
- Province of Ontario through MRI
- Simons Foundation [488661]
- FAPESP [2016/01343-7]
- [CERN/FIS-NUC/0045/2015]
- Fundação para a Ciência e a Tecnologia [CERN/FIS-NUC/0045/2015] Funding Source: FCT
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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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