On the cross-section peaks for a heavy quark bound state

Abstract

We discuss the values of resonance peaks of the cross-section of a heavy quark bound state obtained by means of a Green function method applied to a Coulombic model and compare the result to the Upsilon and J/psi data.

8 pages, latex2e. Accepted for publication in EPJC. Revised version has an added paragraph about J/psi

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