R ROY

Laboratoire de Physique Nucleaire, Departement de Physique, Universite Laval, Quebec G1K 7P4, Canada

Abstract.

A midrapidity zone formed in heavy-ion collisions has been investigated through special selections of light particles and intermediate mass fragments detected in the reaction ³⁵ Cl on ¹² C at 43 MeV/nucleon and the reactions ⁵⁸Ni on ¹²C, ²⁴Mg, and ¹⁹⁷Au at 34.5 MeV/nucleon, and of neutron energy spectra measured in the reaction ³⁵ Cl on ^nat Ta. Properties of the observables have been examined to characterize the neck-like structure formed between the two reaction partners.

Keywords:  Hot nuclei; multifragmentation; equilibrium; statistical emission; dynamics; neck emission.

Pacs Nos.  25.70.Lm; 25.70.Mn