Employing Approximate Symmetries for Hidden Pole Extraction
Abstract
Recent lattice analyses of the Dπ scattering by Hadron Spectrum Collaboration(HadSpec) report only one pole in the D0* channel. This is in odds with the unitarised chiral perturbation theory analyses, which predict the D0*(2300) as the interplay of two poles. We provide an explanation for this contradiction - the exsistence of a hidden pole. We further show that the hidden pole can be better extracted from the lattice data by imposing SU(3) flavour constraints on the fitting amplitudes.
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