Mass Spectrum of Mesons via the WKB Approximation Method

Table 1

Charmonium spectra in .

State	Present work	AEIM [11]	NU [15]	AIM [30]	LTM [18]	ANN [19]	Exp. [60]
1S	3.098	3.095481	3.095	3.096	3.0963	3.098	3.097
2S	3.689	3.567354	3.685	3.686	3.5681	3.688	3.686
3S	4.041	4.039226	4.040	4.275	4.0400	4.029	4.039
4S	4.266	4.511098	4.262	4.865	4.5119
1P	3.262	3.567735	3.258	3.214	3.5687	3.516	3.511
2P	3.784	4.039607	3.779	3.773	4.0406	3.925	3.927
1D	3.515	4.039683	3.510	3.412	4.0407	3.779	3.770