The pole structure of low energy πN scattering amplitudes

The pole structure of low energy πN scattering amplitudes

This report presents an investigation of the pion-nucleon elastic scattering in low energy region using a production representation of the partial wave S matrix. The phase shifts are separated into contributions from poles and branch cuts, where the left-hand cut term can be evaluated by tree-level...

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Bibliographic Details
Main Author:	Wang Yu-Fei
Format:	Article
Language:	English
Published:	EDP Sciences 2019-01-01
Series:	EPJ Web of Conferences
Online Access:	https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_02004.pdf

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