Abstract
We study the Regge trajectories of the Mellin amplitudes of the 0-,1- and 2-magnon correlators of the Fishnet theory. Since fishnet theory is both integrable and conformal, the correlation functions are known exactly. We find that while for 0 and 1 magnon correlators, the Regge poles can be exactly determined as a function of coupling, 2-magnon correlators can only be dealt with perturbatively. We evaluate the resulting Mellin amplitudes at weak coupling, while for strong coupling we do an order of magnitude calculation.
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Chowdhury, S.D., Haldar, P. & Sen, K. On the Regge limit of Fishnet correlators. J. High Energ. Phys. 2019, 249 (2019). https://doi.org/10.1007/JHEP10(2019)249
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DOI: https://doi.org/10.1007/JHEP10(2019)249