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Charge-asymmetry equilibration in the reaction of /sup 129/ /sup 132/ /sup 136/Xe with /sup 197/Au near the interaction barrier

Journal Article · · Phys. Rev. Lett.; (United States)
Neutron-proton population ratios for quasielastic and inelastic processes in the reactions of 761-MeV /sup 129/Xe, 769-MeV /sup 132/Xe, and 795-MeV /sup 136/Xe ions with thick /sup 197/Au targets were determined radiochemically. Completely relaxed N/Z ratios are observed for damped collisions involving the transfer of ..delta..Z > or = 1 charge units. The limiting condition ..delta..Z approx. = 1 corresponds to a characteristic time of the order of 10/sup -22/ sec which indicates the absence of dissipative forces in the equilibration of the charge-asymmetry mode.
Research Organization:
Gesellschaft fuer Schwerionenforschung mbH, D-61 Darmstadt, Germany
OSTI ID:
5320321
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 39:16; ISSN PRLTA
Country of Publication:
United States
Language:
English