Abstract
We show that all tree-level amplitudes in φ p scalar field theory can be represented as the α ′ → 0 limit of an SL(2, ℝ)-invariant, string-theory-like dual model integral. These dual models are constructed according to constraints that admit families of solutions. We derive these dual models, and give closed formulae for all tree-level amplitudes of any φ p scalar field theory.
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Baadsgaard, C., Bjerrum-Bohr, N., Bourjaily, J. et al. String-like dual models for scalar theories. J. High Energ. Phys. 2016, 19 (2016). https://doi.org/10.1007/JHEP12(2016)019
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DOI: https://doi.org/10.1007/JHEP12(2016)019