Phys. Rev. C 61, 061601(R) (2000) [4 pages]Isotropic emission components in splintering central collisions: (17-115)A MeV 40Ar + Cu, Ag, Au
The ensemble of charged isotropically emitted ejectiles is studied for central collisions of (17-115)A MeV 40Ar + Cu, Ag, Au. Measurements of average multiplicities, spectral slopes, and masses of the heaviest fragments are compared to statistical models for multifragmentation or sequential evaporation. The multifragmentation models predict much more complete nuclear disassembly than is observed. The evaporation model reproduces the data much more closely except for the spectra of Z=1 ejectiles. The kinetic energies of Z=1 and 2 ejectiles are much less than found for 1A GeV 197Au+12C for similar energy depositions. Entrance channel dynamics seem to affect the isotropic emission ensembles, often taken to define an equilibrated emission source. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.61.061601
DOI:
10.1103/PhysRevC.61.061601
PACS:
25.70.Pq, 25.70.Hi, 25.70.Pq
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