Abstract
In this paper we initiate the study of multi-flavor Galileon theories using the methods of scattering amplitudes. We explore this topic from different perspectives and extend the techniques employed so far mainly in the single-flavor case. This includes soft theorems, generalized soft theorems with non-trivial right-hand side, Galileon dualities, soft bootstrap and bonus relations. We demonstrate new properties on two examples, the multi-flavor U(N) Galileon and the three-flavor U(2)/U(1) Galileon.
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Kampf, K., Novotný, J. Scattering amplitudes and soft theorems in multi-flavor Galileon theories. J. High Energ. Phys. 2020, 56 (2020). https://doi.org/10.1007/JHEP12(2020)056
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DOI: https://doi.org/10.1007/JHEP12(2020)056