Extended Partial-Wave Analysis of piN Scattering Data
Nuclear Theory
2009-09-29 v1 High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
We present results from a comprehensive partial-wave analysis of pi+-p elastic scattering and charge-exchange data, covering the region from threshold to 2.6 GeV in the lab pion kinetic energy, employing a coupled-channel formalism to simultaneously fit pi-p-->eta n data to 0.8 GeV. Our main result, solution SP06, utilizes a complete set of forward and fixed-t dispersion relation constraints applied to the piN elastic amplitude. The results of these analyses are compared with previous solutions in terms of their resonance spectra and preferred values for couplings and low-energy parameters.
Cite
@article{arxiv.nucl-th/0605082,
title = {Extended Partial-Wave Analysis of piN Scattering Data},
author = {R. A. Arndt and W. J. Briscoe and I. I. Strakovsky and R. L. Workman},
journal= {arXiv preprint arXiv:nucl-th/0605082},
year = {2009}
}
Comments
21 pages, 11 figures