Approximate mass spectra and root mean square radii of quarkonia using Cornell potential plus spin-spin interactions

We proposed a global spin-dependent potential energy function which fits the description of the non-relativistic quark model. The spin dependencies of our model result from the harmonic approximation of the Gaussian function in the spin-spin component. The approximation enables us to obtain analytic...

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Bibliographic Details
Published inNuclear physics. A Vol. 1034; p. 122653
Main Authors Omugbe, E., Inyang, E.P., Njoku, I.J., Martínez-Flores, C., Jahanshir, A., Okon, I.B., Eyube, E.S., Horchani, R., Onate, C.A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2023
Subjects
Bosons
Cornell potential
Mesons spectroscopy
Nikiforov-Uvarov method
Nikiforov-Uvarov method
Mesons spectroscopy
Cornell potential
Bosons
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Summary:We proposed a global spin-dependent potential energy function which fits the description of the non-relativistic quark model. The spin dependencies of our model result from the harmonic approximation of the Gaussian function in the spin-spin component. The approximation enables us to obtain analytical solutions of the bound states for the heavy mesons singlet and triplet states using the conventional Nikiforov-Uvarov method. The obtained mass spectra and expectation values for the low through high-lying quantum states are in agreement with the results obtained for other potential functions in the existing literature. The splitting of the masses occurs at a distance greater than the obtained characteristic radius of the heavy mesons which were found to be within the experimentally observed 1fm. The proposed potential model may be extended to obtain other meson spectroscopic parameters such as the decay constants, wave function at the origin and electromagnetic radiative transitions.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2023.122653