Possible large phase in psi(2S) -> 1-0- Decays
High Energy Physics - Phenomenology
2016-09-06 v2
Abstract
The strong and the electromagnetic amplitudes are analyzed on the basis of the measurements of J/psi, psi(2S) -> 1-0- in e+e- experiments. The currently available experimental information is revised with inclusion of the contribution from e+e- -> gamma * -> 1-0- . The study shows that a large phase around minus 90 degree between the strong and the electromagnetic amplitudes could not be ruled out by the experimental data for psi(2S).
Keywords
Cite
@article{arxiv.hep-ph/0303144,
title = {Possible large phase in psi(2S) -> 1-0- Decays},
author = {P. Wang and C. Z. Yuan and X. H. Mo},
journal= {arXiv preprint arXiv:hep-ph/0303144},
year = {2016}
}
Comments
4 pages