Effects of nuclear orientation on fusion and fission process for reactions using 238U target nucleus

Details Effects of nuclear orientation on fusion and fission process for reactions using 238U target nucleus Effects of nuclear orientation on fusion and fission process for reactions using 238U target nucleus

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1238..307n&link_type=abstract

TOURS SYMPOSIUM ON NUCLEAR PHYSICS AND ASTROPHYSICS-VII. AIP Conference Proceedings, Volume 1238, pp. 307-312 (2010).

Physics

Nuclear Physics

Nuclear Polarisation, Nuclear Mass, Statistical Models, Shell Model (Nuclear), Radioisotopes, Nuclear Orientation Devices, Binding Energies And Masses, Thermal And Statistical Models, Shell Model, Sources Of Radioactive Nuclei

Scientific paper

Fission fragment mass distributions in the reaction of 30Si+238U were measured at the energies around the Coulomb barrier. At the above-barrier energies, the mass distribution showed Gaussian shape. At the sub-barrier energies, asymmetric fission mode peaked at AL/AH~90/178 was observed. The asymmetric fission should be attributed to quasifission from the results of the measured evaporation residue (ER) cross-sections produced by 30Si+238U. The cross-section for 263Sg at the above-barrier energy agree with the statistical model calculation which assumes that the measured fission cross-sections are equal to the fusion cross-sections, whereas the one for 264Sg measured at the sub-barrier energy is smaller than the calculation, indicating the presence for quasifission. The fragment mass distributions are compared to those for 36S+238U and 40Ar+238U.

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