CHARMONIUM SPLITTINGS FROM QCD SUM-RULES

Citation
E. Disalvo et al., CHARMONIUM SPLITTINGS FROM QCD SUM-RULES, Nuclear physics. B, 1997, pp. 233-237
Citations number
14
Categorie Soggetti
Physics, Nuclear
Journal title
ISSN journal
05503213
Year of publication
1997
Supplement
54
Pages
233 - 237
Database
ISI
SICI code
0550-3213(1997):<233:CSFQS>2.0.ZU;2-P
Abstract
We use QCD sum rules, together with two different numerical algorithms , for predicting masses of first excited states and, as a byproduct, p artial decay widths of ground states in various channels of Charmonium . In particular we apply the method to the S-1(o) channel and to the P -1(1) channel. Our predictions on first excited states (m(r/c) 3575(-1 8)(+30) MeV, (h/c) = 4355(-26)(+37)MeV) and on partial decay widths (G amma(eta c+2 gamma) = 5585(-635)(+490) eV, Gamma(hc-->3q) = 515-803 ke V) are consistent with present (poor) data and agree with most predict ions done by other methods.