Heavy quarkonium hyperfine structure and leptonic decays
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
The relation between the hyperfine structure and leptonic decay rates of heavy quarkonia is considered with the account of relativistic and radiative corrections. The calculated decay rates agree well with the available experimental data, while the predicted eta_c(2S) mass is significantly smaller than the value measured recently by the Belle and BaBar Collaborations.
Keywords
Cite
@article{arxiv.hep-ph/0308150,
title = {Heavy quarkonium hyperfine structure and leptonic decays},
author = {D. Ebert and R. N. Faustov and V. O. Galkin},
journal= {arXiv preprint arXiv:hep-ph/0308150},
year = {2007}
}
Comments
Invited talk at the XXIII Physics in Collisions Conference (PIC03), Zeuthen, Germany, June 2003, 3 pages, LaTeX. PSN FRAP05