Deducing the string-breaking distance in strong production processes

Details Deducing the string-breaking distance in strong production processes Deducing the string-breaking distance in strong production processes

2007-12-11

arxiv.org/abs/0712.1771v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

plain LaTeX, 7 pages, 6 figures. Minor, but not unimportant changes. In particular w.r.t. implications for Watson's theorem. T

Scientific paper

We show that the string-breaking distance can be read from meson-production data, by employing a previously derived expression for the production amplitude. Accordingly, we find that the radii of 0.67, 0.34 and 0.20 fm for the creation of non-strange q-qbar pairs obtained in the Resonance-Spectrum-Expansion model, for light-quark, c-cbar, and b-bbar environments, respectively, are in perfect agreement with S-wave di-pion production data, upon employing an ansatz with no additional free parameters.

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