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In this research, the radial Schrödinger equation is solved analytically using the Nikiforov-Uvarov method with the Cornell potential. The energy spectrum and the corresponding wave function are obtained in close form. The effect of Topological Defect on the thermal properties and mass spectra of heavy mesons such as charmonium and bottomonium are studied with the obtained energy spectrum. It is found that the presence of the Topological Defect increases the mass spectra and moves the values close to the experimental data. Our results agreed with the experimental data and are seen to be improved when compared with other works. [ABSTRACT FROM AUTHOR]

In this paper, we investigate the mass spectra and decay properties of B , B s and B c mesons using the relativistic potential model with confining potential V q (r) = 1 2 (1 + γ 0) (a 2 r + V 0). The calculated mass spectra of B , B s and B c accord to the findings of the experiments and other theoretical forecasts. Using the same parameters, we calculate possible radiative decay widths of V (n s) → P (n s) γ and P (n s) → V (n s) γ , n = 1 , 2 , 3 and weak leptonic decay constants of B , B s and B c mesons. Our results, in most cases, generally agree with experimental and other theoretical predictions. Finally, we also investigate mixing parameters x q , y q and χ q for B q 0 − B ¯ q 0 (q ϵ d , s) mesons, where our calculated values reasonably agree with the experiment. [ABSTRACT FROM AUTHOR]

Recently, the BESIII Collaboration reported that there exist two explicit enhancement structures near 2.25 GeV, one has the mass of M = 2 2 3 2 ± 1 9 ± 2 7 MeV and the width of Γ = 9 3 ± 5 3 ± 2 0 MeV and another structure has the mass of M = 2 2 0 0 ± 1 1 ± 1 7 MeV and the width of Γ = 7 4 ± 2 0 ± 2 4 MeV when analyzing the cross section of subprocesses. Earlier, the BESIII Collaboration reported the existence of the X (2 2 2 0) , with a mass of 2 2 2 2 ± 7 ± 2 MeV and width of 5 9 ± 3 0 ± 6 MeV. Based on these experimental results, we carried out a study. We present the comparison of the mass spectrum between theoretical and experimental masses and examine the two-body strong decays of these states within two different approaches to the 3 P 0 model. We find that the newly discovered states are most likely to be an ω (3 D) state. This discovery could be useful in establishing entire ω mesons. [ABSTRACT FROM AUTHOR]

The mass spectra and decay properties of B and B s mesons are obtained using the nonrelativistic potential model by applying the variational approach. The quark–anti-quark potential used in our model consists of a Hulthen potential and a confining linear potential. The hyper-fine interaction is introduced to obtain the splittings of the spin-singlet and triplet states, while the spin–orbit and tensor interactions provide the fine structure splittings. The model parameters and the wave functions that reproduce the mass spectra are used to investigate the decay properties of B and B s mesons. The mass spectra of B and B s mesons have been enhanced using coupled channel effects. [ABSTRACT FROM AUTHOR]

Here, analytical expressions of energy eigenvalues and eigen functions for a generalized Cornell potential are obtained by solving the non-relativistic Schrodinger equation using the Nikiforov–Uvarov functional analysis method along with Greene–Aldrich approximation. Energy spectra of three physically important potentials viz the pseudoharmonic, the Kratzer and the Coulomb perturbed potentials are derived from the general results. Further, within the framework of the Kratzer potential, energy eigenvalue spectra of diatomic molecules CO , NO , O 2 , LiH and HCl are computed. The mass spectra of two heavy mesons are also investigated using the Coulomb perturbed potential, a form of the generalized Cornell potential. The obtained results are in good agreement with the results of others studies. The study is further extended to calculate and draw the partition function and other associated thermodynamic quantities for heavy mesons. [ABSTRACT FROM AUTHOR]