It is shown that for realistic finite nuclei it has a wrong dependence on mass and energy by which the internal phase-space for the split of a heavier nucleus into two similar pieces is reduced. This leads e.g. to a substantial and - measurable - suppression of statistical fragmentation ...
I. The Size of the Nucleus A simple formula is given for the nuclear density distribution; the radius of the uniform (square-well) density distribution which yields the same is r=... Williams,W Robert - 《Physical Review》 被引量: 38发表: 1955年...
The results for the binding energy are analysed in the form of the liquid-drop mass formula. We find that the surface energy coefficient is smaller by 20% for a nucleus of ten nucleons than for large nuclei, the symmetry energy coefficient is constant for all real nuclei, and the surface...
Fig. 2. (a) The electron density (top) and the Laplacian of the electron density (bottom) for the Li 2S state (UHF/6–31 G). The Valence Shell Charge Concentration (VSCC)11 extends from 2.2 to 3.8 au from the Li nucleus. Contours are drawn at intervals of ± (2,4,8)·10n,–...
The year 2024 brought a particularly stunning scientific discovery with the identification of a previously unknown class of magnetism. The force of magnetism comes from the way that electrons in atoms orbit the nucleus. The orientation and strength of an atom's magnetic force is called a magnetic...
A complete set of differential maps at ± 0.1 and ± 0.05 eÅ−3 is given in the Supporting Materials (pdf file) and as 3D rotating view (in power-point presentation). Around F–Ca bonding directions, further from the nucleus (Fig. 4), the mentioned above positive values (...
Level Density of the Pre Compound Nucleus Calculations for [28 60Ni], [2858Ni], Using Exciton Model The Pairing correction has a major effect in the present calculations. Keyword: level density, Exciton model, [28 60Ni],[2858Ni], , Formula ESM.doi:10.4028/www.scientific.net/KEM.900.34Maha...
Upper panel: Difference between the exact (SCE) and approximate strong coupling limit energy density for the beryllium atom, , as a function of the distance from the nucleus, r/a.u. The inset in the upper panel is focusing on the error of the shell and NLR model for larger r. Lower ...
True or false? Almost all the mass of an atom is concentrated in the nucleus. True or false? The change in temperature of a substance when a certain amount of heat is transferred to it is directly proportional to its mass. A mole of sucrose has a mass of 342.3 g. a. true b. ...
Within an isospin-dependent transport model for nuclear reactions induced by neutron-rich nuclei, we perform a comparative study of 100Sn+124Sn and 100Zn+1... BA Li - 《Physical Review C》 被引量: 19发表: 2004年 Formula for proton-nucleus reaction cross section at intermediate energies and...