The tree-level spectrum of heavy particles can be extracted from EFT Wilson coefficients using new nonlinear analytic dispersion relations, exactly for finite resonances and approximately otherwise.
[23] for an analogous construction of an amplitude-like object from the logarithmic derivative of the Landau-RiemannΞfunction, encoding the locations of the zeta function’s zeros
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On the Inverse Problem in Effective Field Theory
The tree-level spectrum of heavy particles can be extracted from EFT Wilson coefficients using new nonlinear analytic dispersion relations, exactly for finite resonances and approximately otherwise.