Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-10-28
Phys.Rev.C79:014305,2009
Physics
Nuclear Physics
Nuclear Theory
6 pages, 7 figures
Scientific paper
10.1103/PhysRevC.79.014305
We discuss the origin of the narrowness of the single peak at mass-symmetric division in the fragment mass-yield curve for spontaneous fission of $^{258}$Fm. For this purpose, we employ the macroscopic-microscopic model, and calculate a potential-energy curve at the mass-symmetric compact scission configuration, as a function of the fragment mass number, which is obtained from the single-particle wave-function densities. In the calculations, we minimize total energies by varying the deformations of the two fragments, with constraints on the mass quadrupole moment and keeping the neck radius zero, as a function of mass asymmetry. Using the obtained potential, we solve the one-dimensional Schr\"odinger equation with a microscopic coordinate-dependent inertial mass to calculate the fragment mass-yield curve. The calculated mass yield, expressed in terms of the microscopic mass density, is consistent with the extremely narrow experimental mass distribution.
Ichikawa Takatoshi
Iwamoto Akira
Moller Peter
No associations
LandOfFree
Origin of the narrow, single peak in the fission-fragment mass distribution for $^{258}$Fm does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Origin of the narrow, single peak in the fission-fragment mass distribution for $^{258}$Fm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Origin of the narrow, single peak in the fission-fragment mass distribution for $^{258}$Fm will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-485419