Mass and charge transfer in the heavy ion reactions /sup 208/Pb+ /sup 58/Ni and /sup 208/Pb+ /sup 64/Ni

Journal Article · Mon Apr 01 04:00:00 EST 1985 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.31.1297· OSTI ID:5885666

Sapotta, K; Bass, R; Hartmann, V; Noll, H; Renfordt, R E; Stelzer, K

Target-like reaction products corresponding to the transfer of one or several nucleons have been measured as a function of the total kinetic energy loss in the reactions /sup 208/Pb+ /sup 58/Ni (1215 MeV) and /sup 208/Pb+ /sup 64/Ni (1107 MeV) with a focusing time-of-flight spectrometer which provided a unique mass and charge separation and good energy resolution. The analysis of the experimental data covered the range from elastic scattering to deep-inelastic collisions. In the quasielastic region, neutron transfer dominates. The transfer probabilities as a function of the distance of closest approach can be described by a semiclassical theory of tunneling. Quasielastic transfer from the Ni targets to the /sup 208/Pb projectile is strongly inhibited by the reaction Q values. For the intermediate and deep-inelastic collisions, the mean values and variances of the mass and charge distributions as a function of the dissipated energy, as well as the correlations between neutron and proton transport, are discussed in a statistical diffusion theory. The important influence of the static potential energy surface on nucleon transport in the deep-inelastic region is demonstrated. Deviations from the simple diffusion model, observed at small to medium energy losses, are discussed.

• Research Organization: Institut fuer Kernphysik der Universitat Frankfurt, D-6000 Frankfurt am Main, Federal Republic of Germany
• OSTI ID: 5885666
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 31:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651525* -- Nuclear Properties & Reactions
A=39-58
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGE DISTRIBUTION
CHARGED-PARTICLE REACTIONS
DEEP INELASTIC SCATTERING
DIFFUSION
DIRECT REACTIONS
ELASTIC SCATTERING
ENERGY
ENERGY DEPENDENCE
ENERGY RANGE
GEV RANGE
GEV RANGE 01-10
HEAVY ION REACTIONS
INELASTIC SCATTERING
INTERACTIONS
LEAD 208 REACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MASS SPECTRA
NICKEL 58 TARGET
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PROBABILITY
Q-VALUE
SCATTERING
SPECTRA
TARGETS
TRANSFER REACTIONS