title: Breakup densities of hot nuclei.
abstract: Breakup densities of hot 197Au-like residues have been deduced from the systematic trends of Coulomb parameters required to fit intermediate-mass-fragment kinetic-energy spectra. The results indicate emission from nuclei near normal nuclear density below an excitation energy E(*)/A less, similar 2 MeV, followed by a gradual decrease to a near-constant value of rho/rho(0) approximately 0.3 for E(*)/A greater, similar 5 MeV. Temperatures derived from these data with a density-dependent Fermi-gas model yield a nuclear caloric curve that is generally consistent with those derived from isotope ratios.
authors.affiliation: Department of Chemistry and IUCF, Indiana University, Bloomington, Indiana 47405, USA.
authors.forename: V E
authors.initials: VE
authors.lastname: Viola
authors.forename: K
authors.initials: K
authors.lastname: Kwiatkowski
authors.forename: J B
authors.initials: JB
authors.lastname: Natowitz
authors.forename: S J
authors.initials: SJ
authors.lastname: Yennello