Table 1 Mass spectra of charmonium (in GeV) (mc = 1.209 GeV, a = 0.01 GeV2, b = 14.94, d = − 15.04 GeV−1, c = 0.02 GeV3, δ = 1.7 GeV)
State | Present work | [8] | [28] | [30] | [25] | [31] | N = 4 | Exp. [32] |
|---|---|---|---|---|---|---|---|---|
1s | 3.095 | 3.078 | 3.096 | 3.096 | 3.096 | 3.078 | 3.360 | 3.096 |
1p | 3.258 | 3.415 | 3.433 | 3.433 | 3.255 | 3.415 | 3.673 | – |
2s | 3.685 | 4.187 | 3.686 | 3.686 | 3.686 | 3.581 | 3.698 | 3.686 |
1D | 3.510 | 3.752 | 3.767 | 3.770 | 3.504 | 3.749 | 3.895 | – |
2p | 3.779 | 4.143 | 3.910 | 4.023 | 3.779 | 3.917 | 3.827 | 3.773 |
3s | 4.040 | 5.297 | 3.984 | 4.040 | 4.040 | 4.085 | 3.966 | 4.040 |
4s | 4.262 | 6.407 | 4.150 | 4.355 | 4.269 | 4.589 | 3.986 | 4.263 |
2D | 3.928 | – | – | 3.096 | – | 3.078 | 4.170 | 4.159 |