Employing Approximate Symmetries for Hidden Pole Extraction

2023/12/15 by Anuvind Asokan, Asokan, Anuvind
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2312.09879

openalex publication_date 2023/12/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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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