Bounds on the Soft Pomeron Intercept
Abstract
The Donnachie-Landshoff fit of total cross sections has now become a standard reference for models of total, elastic and diffractive cross-sections. Adopting their philosophy that simple-pole exchanges should account for all data to present energies, we assess the uncertainties on their fits. Our best estimate for the pomeron intercept is , but several models have a good chi square for intercepts in the range [1.07,1.11].
Cite
@article{arxiv.hep-ph/9601336,
title = {Bounds on the Soft Pomeron Intercept},
author = {J. R. Cudell and K. Kang and S. K. Kim},
journal= {arXiv preprint arXiv:hep-ph/9601336},
year = {2009}
}
Comments
15 pages, LaTeX, 8 postscript figures embedded using psfig.sty, postscript version available at http://nuclth02.phys.ulg.ac.be/DATA.html Although our conclusions remain largely unaffected, this new version provides a much more careful statistical analysis of the data, a better determination of the uncertainties, and suggests a model-independent way to remove erroneous data points. We also include an analysis of pion-proton data, and a comparison of our results with other estimates