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Charmonium Spectrum and Their Transitions in Relativistic Quark Models

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Communications in Theoretical Physics 2011年第6期55卷 1044-1048页

作者： bhaghyesh K.B. Vijaya Kumar Department of Physics Mangalore UniversityMangalagangotriMangalore 574 199India

Using the phenomenological relativistic harmonic model （RHM） for quarks, we have obtained the masses of S wave charmonium states. The full Hamiltonian used in the investigation has Lorentz scalar plus vector confinement potential, along with the confined one gluon exchange potential （COGEP）. A good agreement with the experimental masses for the ground state and the radially excited states is obtained for both the triplet and singlet S wave mesons. The calculated charge radii, meson decay constants, leptonic decay width, two photon decay width, and the radiative M1 decay width are in good agreement with the experimental results.

关键词： quark model confined-one-gluon-exchange potential S-wave charmonium states charge radii decay constants Leptonic two photon and radiative decays

Bottomonium Spectrum and Decays with One Gluon Exchange Potential

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Communications in Theoretical Physics 2011年第9期56卷 476-480页

作者： Antony Prakash Monteiro K.B.Vijaya Kumar bhaghyesh Department of Physics Mangalore UniversityMangalagangotriMangalore 574199India

The phenomenological non-relativistic quark model （NRQM） has been employed to obtain the masses of bottomonium states. In the frame work of NRQM an exhaustive study of radiative and leptonic decays has been made. The Hamiltonian used in the investigation has kinetic energy, confinement potentiM and one gluon exchange potential （OGEP）. An overall agreement is obtained with the experimental masses and decay widths.

关键词： quark model one gluon exchange potential bottomonium states leptonic and radiative decays

Heavy quarkonia spectra and their decays in a relativistic quark model

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Chinese Physics C 2011年第11期35卷 997-1003页

作者： bhaghyesh K. B. Vijaya Kumar Antony Prakash Monteiro Department of Physics Mangalore University

Using the phenomenological relativistic harmonic model （RHM） for quarks, we have obtained the masses of S wave charmonium and bottomonium states. The full Hamiltonian used in the investigation has Lorentz scalar plus vector confinement potential, along with the confined one gluon exchange potential （COGEP）. A good agreement with the experimental masses for the ground and the radially excited states is obtained both for the triplet and singlet S wave mesons. The decay properties of the ground state charmonium and bottomonium are investigated.

关键词： relativistic harmonic model confined one gluon exchange potential S-wave spectrum decay rates