Evaporation residue yields in reactions of heavy neutron-rich radioactive ion beams with {sup 64}Ni and {sup 96}Zr targets

• Published in: AIP conference proceedings 2009-03, Vol.1098 (1)
• Main Authors: Shapira, D., Liang, J. F., Gross, C. J., Varner, R. L., Beene, J. R., Stracener, D. W., Mueller, P. E., Kolata, J. J., Roberts, A., Loveland, W., Vinodkumar, A. M., Prisbrey, L., Sprunger, P., Jones, K. L., Caraley, A. L.
• Format: Article
• Language: English
• Subjects: ANTIMONY 134; COMPARATIVE EVALUATIONS; EVAPORATION MODEL; HEAVY ION FUSION REACTIONS; IONIZATION CHAMBERS; NICKEL 64 TARGET; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTION YIELD; RADIOACTIVE ION BEAMS; TELLURIUM 134; TIN 132; TIN 134; ZIRCONIUM 96 TARGET
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.3108809

As hindrance sets in for the fusion of heavier systems, the effect of large neutron excess in the colliding nuclei on their probability to fuse is still an open question. The detection of evaporation residues (ERs), however, provides indisputable evidence for the fusion (complete and incomplete) in the reaction. We therefore devised a system with which we could measure ERs using low intensity neutron-rich radioactive ion beams with an efficiency close to 100%. We report on measurements of the production of ERs in collisions of {sup 132,134}Sn, {sup 134}Te and {sup 134}Sb ion beams with medium mass, neutron-rich targets. The data taken with {sup 132,134}Sn bombarding a {sup 64}Ni target are compared to available data (ERs and fusion) taken with stable Sn isotopes. Preliminary data on the fusion of {sup 132}Sn with {sup 96}Zr target are also presented.