Abstract
The Coulomb plus linear (Cornell) potential is used to investigate the mass spectrum of bottomonium. Gaussian wave function is used in position and momentum space to estimate values of potential and kinetic energies, respectively. Based on our calculations, we study newly observed \({\varUpsilon {(10860)}}\) as an admixture of \(4^{3}S_{1}\) with \(4^{3}D_{1}\) and \({\varUpsilon {(10753)}}\) as an admixture of \(6^{3}S_{1}\) with \(4^{3}D_{1}\); also, we try to assign \({{\varvec{\Upsilon }}{(11020)}}\) as a pure \(4^{3}D_{1}\) bottomonium state. We also study the Regge trajectories in the \((J,M^{2})\) and \((n_r,M^{2})\) planes to help prove our association. We estimate the pseudoscalar and vector decay constants, the radiative (electric and magnetic dipole) transition rates, and the annihilation decay width for bottomonium states.
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Data Availability Statement
This manuscript has no associated data or the data will not be deposited. [Authors’ comment: There are no associated data available.]
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Acknowledgements
A. K. Rai acknowledges the financial support extended by the Department of Science of Technology, India, under the SERB fast track scheme SR/FTP /PS-152/2012.
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Kher, V., Chaturvedi, R., Devlani, N. et al. Bottomonium spectroscopy using Coulomb plus linear (Cornell) potential. Eur. Phys. J. Plus 137, 357 (2022). https://doi.org/10.1140/epjp/s13360-022-02538-5
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DOI: https://doi.org/10.1140/epjp/s13360-022-02538-5