Energy Dependence of the Delta Resonance: Chiral Dynamics in Action
High Energy Physics - Phenomenology
2015-03-13 v1 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
Abstract
There is an important connection between the low energy theorems of QCD and the energy dependence of the Delta resonance in pi-N scattering, as well as the closely related gamma^{*} N -> pi N reaction. The resonance shape is due not only to the strong pi-N interaction in the p wave but the small interaction in the s wave; the latter is due to spontaneous chiral symmetry breaking in QCD (i.e. the Nambu-Goldstone nature of the pion). A brief overview of experimental tests of chiral perturbation theory and chiral based models is presented
Keywords
Cite
@article{arxiv.0710.3387,
title = {Energy Dependence of the Delta Resonance: Chiral Dynamics in Action},
author = {A. M. Bernstein and S. Stave},
journal= {arXiv preprint arXiv:0710.3387},
year = {2015}
}
Comments
11 pages, 6 figures, Festschrift for S.N. yang