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Table 4 Mass spectra of c\( \overline{\mathrm{s}} \) meson in (GeV) (mc = 1.628, ms = 0.419 GeV, a = 0.48 GeV2, b = 3.795, d =  − 1.481 GeV−1, c = 0.1 GeV3, δ = 1.6 GeV)

From: Masses and thermodynamic properties of heavy mesons in the non-relativistic quark model using the Nikiforov–Uvarov method

State Present work Power Screened Phenomenological N = 4 Exp.
1s 1.968 1.9724 1.9685 1.968 2.3001 1968.3 [33]
1p 2.565 2.540 2.7485 2.566 2.742
2s 2.709 2.6506 2.8385 2.815 2.797 2.709 [37]
3S 2.932 2.9691 3.2537 3.280 2.967
1D 2.857 3.934 2.859 [37]