Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 AMeV


Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 AMeV

Poggi, G. E. A.; Kotte, R.; Mösner, J.; Neubert, W.; Wohlfarth, D.

Light-particle emission from Au+Au collisions has been studied in the bombarding-energy range 100-250 AMeV, using Delta-E-ER telescopes in coincidence with the FOPI detector in its phase I configuration. Center-of-mass energy spectra have been measured for Z=1, 2 isotopes emitted in central colisions at CM polar angles between 60o and 90o. Evidence for a collective expansion is reported, on the basis of the mean kinetic energies of hydrogen isotopes. Comparison is presented with statistical calculations (WIX code). For CM kinetic energy spectra, fair agreement is found between data and a recently developed transport model.

Keywords: nuclear reactions

  • Nucl. Phys. A 586 (1995) 755

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Publ.-Id: 4109