Exclusive J / psi and psi-prime decays into baryon - anti-baryon pairs
Feb, 199720 pages
Published in:
- Eur.Phys.J.C 2 (1998) 545-556
e-Print:
- hep-ph/9703252 [hep-ph]
Report number:
- WU-B-97-2
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Abstract:
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.- J/psi(3100): hadronic decay
- psi(3685): hadronic decay
- baryon: pair production
- baryon: multiplet
- symmetry: SU(3)
- J/psi(3100): width
- psi(3685): width
- baryon: wave function
- linear space: Fock space
- helicity: amplitude analysis
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