DECAY OF THE COMPOUND NUCLEUS AU-179 FORMED IN THE COLD FUSION REACTION 90ZR+89Y

For the compound nucleus Au179 formed at an excitation energy of 26 MeV in the fusion reaction Zr-90 + Y-89, the energy spectra of promptly emitted protons, alpha-particles and gamma-rays were measured in concidence with the evaporation residues. On the basis of the measured total decay energy, the 1 p and 1-alpha decay channels were separated from all other evaporation-residue channels. The energy spectra and absolute cross sections, together with previously measured excitation functions for various decay channels, are successfully described by statistical-model calculations with the Monte Carlo code CODEX.