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Spin-Excitation Mechanisms in Skyrme-Force Time-Dependent Hartree-Fock

J. A. Maruhn·P. -G. Reinhard·P. D. Stevenson·M. R. Strayer
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Abstract

We investigate the role of odd-odd (with respect to time inversion) couplings in the Skyrme force on collisions of light nuclei, employing a fully three-dimensional numerical treatment without any symmetry restrictions and with modern Skyrme functionals. We demonstrate the necessity of these couplings to suppress spurious spin excitations owing to the spin-orbit force in free translational motion of a nucleus but show that in a collision situation there is a strong spin excitation even in spin-saturated systems which persists in the departing fragments. The energy loss is considerably increased by the odd-odd terms.

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J. A. Maruhn, P. -G. Reinhard, P. D. Stevenson, M. R. Strayer. 2006-04-26. Spin-Excitation Mechanisms in Skyrme-Force Time-Dependent Hartree-Fock. https://doi.org/10.1103/physrevc.74.027601

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