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2024-06-13 09:47:28

This https://arxiv.org/abs/2312.03676 has been replaced.
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Extracting the Asymptotic Behavior of S-matrix Elements from their Phases
The asymptotic kinematic limits of S-matrices are dominated by large logarithms which, roughly speaking, fall into two categories: those which are controlled by a renormalization group (RG) scale, which we may think of as logs involving ratios of invariant mass scales, and those which are functions of ratios of rapidities, so called "rapidity logs". It has been pointed out by Caron-Huot and Wilhlem [1] that RG anomalous dimension can be extracted from the phase of the S-matrix, which can greatl…