Abstract
Spectroscopies of the heavy quarkonia,\(c\bar c\),\(b\bar b\) and\(t\bar t\), are analysed with a potential model. Relativistic effects are taken into account and spin dependent interactions are investigated in detail. We propose a flavor independent potential which has a Lorentz vector term determined by the perturbative QCD at short distances and a Lorentz scalar term confining quarks at large distances. It is stressed that the short range attenuation of the vector Coulomb potential has significant effects on the fine and hyperfine structures of the\(c\bar c\) and\(b\bar b\) systems, and also on the\(t\bar t\) level structure. We study the decay property of the\(t\bar t\) system using the calculated wave functions.
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Morishita, J., Oka, M., Kaburagi, M. et al. Fine and hyperfine structures of heavy quarkonia and perturbative quantum chromodynamics. Z. Phys. C - Particles and Fields 19, 167–178 (1983). https://doi.org/10.1007/BF01571780
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DOI: https://doi.org/10.1007/BF01571780