A Rosetta Stone Relating Conventions In Photo-Meson Partial Wave Analyses
Abstract
A new generation of complete experiments in pseudoscalar meson photo-production is being pursued at several laboratories. While new data are emerging, there is some confusion regarding definitions of asymmetries and the conventions used in partial wave analyses (PWA). We present expressions for constructing asymmetries as coordinate-system independent ratios of cross sections, along with the names used for these ratios by different PWA groups. (This update reflects a recent change in the definition of an asymmetry as used by one group.)
Keywords
Cite
@article{arxiv.1108.5411,
title = {A Rosetta Stone Relating Conventions In Photo-Meson Partial Wave Analyses},
author = {A. M. Sandorfi and B. Dey and A. Sarantsev and L. Tiator and R. Workman},
journal= {arXiv preprint arXiv:1108.5411},
year = {2015}
}
Comments
v2: This update reflects a recent change in the definition of an asymmetry as used by one PWA group -see Table 1. v1: 4 pages. Contribution to the proceedings of the 8th International Workshop on the Physics of Excited Nucleons (NSTAR2011), Newport News, VA, USA, May 17-20, 2011