Open AccessHeavy quarkonium mass spectra in a relativistic quark model
Author(s) -
Hong Chen,
Mei Hua,
Peng-Nian Shen,
Jiang Huan-Qing
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.1136
Subject(s) - quarkonium , physics , annihilation , particle physics , quark , spectral line , scalar (mathematics) , hyperfine structure , mass spectrum , nuclear physics , quark model , gluon , quantum electrodynamics , atomic physics , quantum mechanics , ion , geometry , mathematics
The mass spectra of heavy quarkonia are calculated with the relativistic quark model.The effective interaction between a quark and an antiquark of the same flavor is assumed to be the sum of the one_gluon exchange with the inclusion of annihilation terms and the mixture of scalar and vector linear confining potentials with the relativisic corrections.The effects of the annihilation and the relativistic correction terms on the hyperfine splittings of quarkonium states are discussed in detail,and a good fit to the observed experimental data is obtained on the mass spectra.