Multichannel parametrization of \pi N scattering amplitudes and extraction of resonance parameters
High Energy Physics - Phenomenology
2013-05-30 v2 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
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.
Keywords
Cite
@article{arxiv.1208.2710,
title = {Multichannel parametrization of \pi N scattering amplitudes and extraction of resonance parameters},
author = {M. Shrestha and D. M. Manley},
journal= {arXiv preprint arXiv:1208.2710},
year = {2013}
}