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arXiv · 1208.2710

Multichannel parametrization of \pi N scattering amplitudes and extraction of resonance parameters

M. Shrestha·D. M. Manley
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Abstract

We present results of a new multichannel partial-wave analysis for \pi N scattering in the c.m. energy range 1080 to 2100 MeV. This work explicitly includes \eta N and K \Lambda channels and the single pion photoproduction channel. Resonance parameters were extracted by fitting partial-wave amplitudes from all considered channels using a multichannel parametrization that is consistent with S-matrix unitarity. The resonance parameters so obtained are compared to predictions of quark models.

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M. Shrestha, D. M. Manley. 2012-08-13. Multichannel parametrization of \pi N scattering amplitudes and extraction of resonance parameters. https://doi.org/10.1103/physrevc.86.055203

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