The study coversarangeofexpansionpointss 0 withintheelasticre- gion, fromtheππthresholdto0.85GeV.Theconvergence of the sequences is illustrated in Figs

andP N 2 (up toP 3 2), both sequences chosen to allow a direct comparison with the previous analysis [1, 18, 19]

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hep-ph · 2025-12-23 · unverdicted · novelty 5.0

Imposing threshold conditions on admissible ππ partial-wave parametrizations refines f0(500) pole positions extracted by Padé approximants.

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Assessing the role of threshold conditions in the determination of uncertainties in pole extractions using Pad\'e approximants hep-ph · 2025-12-23 · unverdicted · none · ref 2
Imposing threshold conditions on admissible ππ partial-wave parametrizations refines f0(500) pole positions extracted by Padé approximants.