1995/10/25 by Thomas Mannel, Res Urech
Physics and Astronomy · #hep-ph
published as Z.Phys. C73 (1997) 541-546 · Latex (uses epsf.sty), 10 pages, 1 Postscript figure in a separate file. The complete paper, including the figure, is also available via anonymous ftp at ftp://www-ttp.physik.uni-karlsruhe.de/ , or via www at http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/preprints/
We construct an effective Lagrangian for the hadronic decays of a heavy excited s-wave-spin-one quarkonium into its ground state. We show that reasonable fits to the measured invariant mass spectra in the J/ψ and Υ systems can be obtained working in the chiral limit. The mass dependence of the various terms in the Lagrangian is discussed on the basis of a quark model.