Resonance Extraction from the SAID Analysis
Ron Workman, Alfred Svarc
TL;DR
This paper compares resonance extraction methods from scattering data, highlighting the impact of recent precise measurements and analyzing results from both energy-dependent and single-energy fits.
Contribution
It introduces a comparative analysis of resonance extraction techniques, incorporating recent high-precision data and applying the L+P method alongside contour integration.
Findings
Resonance parameters are sensitive to recent EPECUR data.
L+P method yields consistent resonance results with contour integration.
Recent data improves the accuracy of resonance extraction.
Abstract
Resonances are extracted from a number of energy-dependent and single-energy fits to scattering data. The influence of recent, precise EPECUR data is investigated. Results for the single-energy fits are derived using the L+P method of analysis and are compared to those obtained using contour integration applied to the global energy-dependent fits.
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