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hep-ph1997
Colour Octet Contribution in Exclusive Charmonium Decay into Baryon-Antibaryon
P. Kroll, S. M. H. Wong
It is argued that colour octet contribution in exclusive charmonium decays is very important even though the same infrared divergence found in P-wave colour singlet inclusive decay…
hep-ph1997
Electromagnetic processes and the diquark model
Peter Kroll
The present status of the diquark model for exclusive reactions at moderately large momentum transfer is reviewed. That model is a variant of the Brodsky-Lepage approach in which d…
hep-ph1997
The transition form factor and its impact on charmonium decays into two pions
Peter Kroll
The analysis of the transition form factor provides severe constraints on the pion's wave function. This information is used to examine charmonium decays into two pions critic…