We evaluated the time delay plot in the established region of the Delta(1232) resonance through the use of elastic scattering phase shift analysis of the partial wave amplitude P33. The pole position and width of the Delta(1232) resonance were obtained and found in agreement with earlier calculations.
Cite
@article{arxiv.1201.3044,
title = {Time Delay Plot for Pion-Nucleon Elastic Scattering},
author = {Mohamed E. Kelabi},
journal= {arXiv preprint arXiv:1201.3044},
year = {2012}
}