Journal article

Publication year: 1972

Pages: 1-14

Journal: Nuclear Physics A: Nuclear and Hadronic Physics

Volume number: 186

Issue number: 1

ISSN: 0375-9474

DOI Link: https://doi.org/10.1016/0375-9474(72)90120-0

Publisher: Elsevier

Abstract: 

Calculations have been carried out to estimate the total fragment kinetic energies E_K, total fragment excitation energies E_x, and approximate total number of neutrons ν emitted in the binary fission of heavy and superheavy nuclei. The kinetic energy calculations are based on a static scission model reported earlier for fissioning nuclei in the actinide region. The total energy release Q is calculated from a recent mass formula of Seeger, and the total excitation energy is obtained from the difference, E_x = Q − E_K. The results show a strong peak in E_K(A)[A = compound nucleus mass number] and a corresponding minimum in E_x(A), at A ≈ 264, corresponding to fission into two nearly double-magic (Z ≈ 50, N ≈ 82) fragments. Our predictions of E_K, E_x, and ν disagree sharply with the liquid-drop predictions in the range 255 ⪅ A ⪅ 290. It appears from these results that kinetic energy measurements do not provide an unambiguous test for superheavy nuclei, while measurements of ν, if , seem to provide such a test.

Harvard Citation style: Schmitt, H. and Mosel, U. (1972) Fission properties of heavy and superheavy nuclei, Nuclear Physics A: Nuclear and Hadronic Physics, 186(1), pp. 1-14. https://doi.org/10.1016/0375-9474(72)90120-0

APA Citation style: Schmitt, H., & Mosel, U. (1972). Fission properties of heavy and superheavy nuclei. Nuclear Physics A: Nuclear and Hadronic Physics. 186(1), 1-14. https://doi.org/10.1016/0375-9474(72)90120-0