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hep-ph1999
Inclusive decays and lifetimes of doubly charmed baryons
B. Guberina, B. Melic, H. Stefancic
We extend the analysis of weak decays of heavy hadrons to the case of doubly charmed baryons, Ξ_{cc}^{++}, Ξ_{cc}^{+} and Ω_{cc}^{+}. Doubly charmed baryons are modeled as a heavy-…
hep-ph1999
Hard exclusive photoproduction of and mesons
C. F. Berger, W. Schweiger
We consider the reaction , with M being either a or a meson, within perturbative QCD treating the proton as a quark-diquark system. The phenomenological coupl…
hep-ph1999
On the PQCD prediction for the pion form factor
B. Melic, B. Nizic, K. Passek
We comment on the results of a complete leading-twist next-to-leading order QCD analysis of the spacelike pion electromagnetic form factor at large-momentum transfer Q. For the asy…