In the present work the adequacy of the complete Breit interaction terms in
describing the strong interaction can be tested through studying cc and bb spectra. Breit
equation is solved using the complete Breit interaction form. The Breit equation can be
transformed into three categories of differential equations according to the spectroscopic
signature of the different states. The resonance masses of cc and bb states are calculated to
order α4. One can see a good agreement between our results and the corresponding experimental data .
Journal name
Turk J Phys
Volume
29
Pages
69-77
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