Heavy quarkonia from classical SU(3) Yang-Mills configurations |
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Authors: | R A Coimbra O Oliveira |
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Institution: | (1) Centro de Fısica Computacional, Universidade de Coimbra, 3004 516 Coimbra, Portugal |
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Abstract: | A generalized Cho-Faddeev-Niemi ansatz for SU(3) Yang-Mills is investigated. The corresponding classical field equations are solved for its simplest parametrization. From
these solutions it is possible to define a confining non-relativistic central potential used to study heavy quarkonia. The
associated spectra reproduces the experimental spectra with an error of less than 3% for charmonium and 1% for bottomonium.
Moreover, the recently discovered new charmonium states can be accomodate in the spectra, keeping the same level of precision.
The leptonic widths show good agreement with the recent measurements. The charmonium and bottomonium E1 electromagnetic transitions widths are computed and compared with the experimental values. |
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Keywords: | PACS" target="_blank">PACS 12 39 Pn Potential models 12 38 Lg Other nonperturbative calculations 12 38 -t Quantum chromodynamics |
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