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arXiv · hep-lat/9510032

Meson-meson interactions -- from static to dynamic valence quarks

H. R. Fiebig·H. Markum·A. Mihály·K. Rabitsch·W. Sakuler·C. Starkjohann
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Abstract

A method for the extraction of an effective meson-meson potential from Green functions, which can be obtained from a lattice simulation, is presented. Simulations are carried out for compact QED and QCD in four dimensions using the quenched approximation and the hopping parameter expansion. In a further study, a heavy-light meson is considered employing a conjugate gradient algorithm for the light propagators. Due to the Pauli exclusion principle, the results for QED indicate the existence of a hard core, but for QCD there is strong attraction at small meson distances.

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H. R. Fiebig, H. Markum, A. Mihály, K. Rabitsch, W. Sakuler, C. Starkjohann. 1995-10-28. Meson-meson interactions -- from static to dynamic valence quarks. https://doi.org/10.1016/0920-5632(96)00081-3

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