Exclusive charmonium decays

Details Exclusive charmonium decays Exclusive charmonium decays

1997-09-18

arxiv.org/abs/hep-ph/9709393v1

Nucl.Phys.Proc.Suppl. 64 (1998) 456-460

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, no figures, uses espcrc2.sty

Scientific paper

10.1016/S0920-5632(97)01107-9

The role of power corrections and higher Fock-state contributions to exclusive charmonium decays will be discussed. It will be argued that the J/Psi (Psi') decays into baryon-antibaryon pairs are dominated by the valence Fock-state contributions. P-wave charmonium decays, on the other hand, receive strong contributions from the c cbar g Fock states since the valence Fock-state contributions are suppressed in these reactions. Numerical results for J/Psi (Psi') --> B Bbar decay widths will be also presented and compared to data.

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