Exclusive J/Psi and Psi'decays into baryon-antibaryon pairs

Details Exclusive J/Psi and Psi'decays into baryon-antibaryon pairs Exclusive J/Psi and Psi'decays into baryon-antibaryon pairs

1997-03-06

arxiv.org/abs/hep-ph/9703252v1

Eur.Phys.J.C2:545-556,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 7 postscript figures, amstex

Scientific paper

10.1007/s100520050160

Within a perturbative approach we investigate decays of charmonium states into baryon-antibaryon pairs. Using a recently proposed wave function for the nucleon and suitable generalizations of it to the hyperons and decouplet baryons, we obtain the decay widths for the baryon-antibaryon channels in reasonable agreement with data. An important difference to previous work is the use of the c-quark mass in the perturbative calculation instead of the charmonium mass. As a consequence of this feature our approach possesses, the J/Psi and the Psi' decay widths do not scale with a high power of the ratio of their masses.

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