Nuclear disassembly of the Pb+Au system atElab=29 MeV per nucleon

Nuclei with Z up to 82 emitted in the ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ ${+}^{197}$Au reaction at ${\mathit{E}}_{\mathrm{lab}}$=29 MeV per nucleon have been measured as a function of the associated neutron multiplicity. The data reveal the presence of strong correlations between character of a collision and neutron multiplicity. The trends suggest a disassembly of the nuclear system into a large number of nucleons and small fragments in the events with the highest neutron multiplicity. In such events, approximately one-third of the neturons are released from the system and fragment yields decrease in an exponential fashion with increasing mass.