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arXiv · hep-ph/9609233

Nonperturbative evaluation of a field correlator appearing in the heavy quarkonium system

M. Baker·J. S. Ball·N. Brambilla·A. Vairo
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Abstract

Recently an electric and magnetic field correlator appearing in the description of the heavy quarkonium system was evaluated on the lattice. Here, we give a nonperturbative analytical evaluation of this field correlator using a dual description of long distance Yang--Mills theory and using the stochastic vacuum model. The two predictions are both compatible with lattice data but show a different dependence on the quark separation. We discuss the analytic results in relation to the lattice data.

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M. Baker, J. S. Ball, N. Brambilla, A. Vairo. 1996-09-03. Nonperturbative evaluation of a field correlator appearing in the heavy quarkonium system. https://doi.org/10.1016/s0370-2693(96)01297-x

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