L2part of the heavy-quark potential from dual QCD and heavy-quark spectroscopy
- 1 April 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 47 (7) , 3021-3026
- https://doi.org/10.1103/physrevd.47.3021
Abstract
We use the classical approximation to the dual QCD field equations to calculate the term in the heavy-quark potential that is proportional to angular momentum squared. This potential combined with the potentials obtained in our earlier work gives a result which is essentially the dual of the potential acting between a monopole-antimonopole pair carrying Dirac electric dipole moments and rotating in a relativistic superconductor. These potentials are used to fit the masses of the low-lying states of the and systems. The agreement, achieved with only four parameters, two of which are roughly determined in advance, is better than 1%. We also predict the masses of the lightest states.
Keywords
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