On the Structure of the Nuclei Between Helium and Oxygen

摘要: In order to test the present assumptions on nuclear forces, theory is applied nuclei in which first $p$ shell of protons and neutrons being built up, i.e., with masses between 5 16. The Hartree-Fock approximation used for numerical calculations, but more qualitative results are independent a large degree approximations used. angular momenta ground states appear be given correctly by theory. Although wave functions do not correspond preformed alpha-particles, first-order energies exhibit marked four-shell structure. experimental energy difference pairs ($N,N+1$), ($N+1,N$) may possibly somewhat larger than electrostatic energies. Support use spin exchange (Heisenberg) forces account singlet-triplet separation deuteron found inferred from ${\mathrm{Li}}^{6}$-${\mathrm{He}}^{6}$ normal state difference. However, ${\mathrm{B}}^{10}$-${\mathrm{Be}}^{10}$ ${\mathrm{N}}^{14}$-${\mathrm{C}}^{14}$ differences fit simple adequate spacing two six particle problems.