Fusion and interaction barrier parameters and critical angular momenta from /sup 35/Cl-induced reactions

Journal Article · Mon Nov 01 04:00:00 EST 1976 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.14.1808· OSTI ID:7250436

Scobel, W; Gutbrod, H H; Blann, M; Mignerey, A

Cross sections for evaporation residue formation and fission following complete fusion of /sup 35/Cl with /sup 27/Al, /sup 48/Ti, /sup 54/,/sup 56/Fe, /sup 58/,/sup 60/,/sup 62/,/sup 64/Ni, /sup 90/Zr, and /sup 116/,/sup 124/Sn have been measured with counter telescopes for laboratory projectile energies between 70 and 170 MeV. Elastic scattering of /sup 35/Cl + /sup 58/,/sup 62/Ni has been measured near the interaction barrier. The excitation functions for complete fusion are analyzed with a semiclassical model, and fusion barrier heights and radii are extracted. These data are discussed in terms of the nuclear density overlap and the nuclear potential contributions to the fusion barrier. The results are compared with the predictions of several heavy ion potential models and with parameters for the interaction deduced from elastic scattering data. For the systems with masses A < 100 about 70% of the total reaction cross section appears as complete fusion. This fraction decreases with increasing mass of the compound system. Evaporation residue and fission excitation functions have been analyzed by the Bohr-Wheeler model using the rotating liquid drop model of Cohen, Plasil, and Swiatecki. To first order these calculations give a satisfactory description of both sets of results. (AIP)

• Research Organization: Nuclear Structure Research Laboratory, University of Rochester, Rochester, New York 14627
• OSTI ID: 7250436
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CHLORINE 35 REACTIONS
CROSS SECTIONS
ENERGY
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITATION FUNCTIONS
FISSION
FISSION BARRIER
FUSION REACTIONS
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
IRON 54 TARGET
IRON 56 TARGET
ISOTOPES
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
NICKEL 58 TARGET
NICKEL 60 TARGET
NICKEL 62 TARGET
NICKEL 64 TARGET
NUCLEAR REACTIONS
NUCLEI
POTENTIAL ENERGY
SCATTERING
STABLE ISOTOPES
TARGETS
TIN 116 TARGET
TIN 124 TARGET
TITANIUM 48
TITANIUM ISOTOPES
ZIRCONIUM 90 TARGET