On the leptonic partial widths of the excited psi states
High Energy Physics - Experiment
2014-11-21 v1
Abstract
The resonance parameters of the excited psi-family resonances, namely the psi(4040), psi(4160), and psi(4415), were determined by fitting the R-values measured by experiments. It is found that the previously reported leptonic partial widths of these states were merely one possible solutions among a four-fold ambiguity. By fitting the most precise experimental data on the R-values measured by the BES collaboration, this work presents all four sets of solutions. These results may affect the interpretation of the charmonium and charmonium-like states above 4GeV/c^2.
Cite
@article{arxiv.1007.0084,
title = {On the leptonic partial widths of the excited psi states},
author = {X. H. Mo and C. Z. Yuan and P. Wang},
journal= {arXiv preprint arXiv:1007.0084},
year = {2014}
}
Comments
4 pages; 2 figures;