Symmetry Aspects of Fission Fragment Mass Distribution in 238U(18O,F) Reaction

  • R. Gupta Department of Physics, Swami Swatantranand Memorial College, India

Abstract

Fine structure dips in the fission fragment mass distribution in 238U(18O; f ) reaction arise mainly due to breakdown of the spin-isospin symmetry. The average proton-neutron interaction for each decay mode is calculated by using double differences of binding energies, It is shown that its decreasing trend at N=82 has direct relevance with the breakdown of spin-isospin symmetry. The maxima in the p-n interaction correspond to partial restoration of spin-isospin symmetry and therefore, help in limiting the number of neutrons evaporated in each decay channel. Also, calculations based on the asymmetric two-center shell model explain not only the observed mass distribution nicely but suggests a possible value of extending these experiments beyond their present mass limits.

Published
Jul 15, 2020
How to Cite
GUPTA, R.. Symmetry Aspects of Fission Fragment Mass Distribution in 238U(18O,F) Reaction. Revista Cubana de Física, [S.l.], v. 37, n. 1, p. 44-48, july 2020. ISSN 2224-7939. Available at: <http://revistacubanadefisica.org/index.php/rcf/article/view/2020v37p44>. Date accessed: 22 oct. 2020.
Section
Original Articles