caa a22 4500 465800521 CHVBK 20180323112051.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF01904157 doi (NATIONALLICENCE)springer-10.1007/BF01904157 On the treatment of the center of mass motion in nuclear mean field theories [Elektronische Daten] [K. Schmid, F. Grümmer] It is shown how the spurious components due to the center of mass motion can be eliminated from general Hartree-Fock-Bogoliubov quasi-particle configurations with the help of projection techniques. The problem how to restore the additional symmetries being broken by such configurations is discussed. An explicit formulation is given for the spherical Hartree-Fock problem with center of mass momentum projection before the variation. As an example for the application of this method the ground state of4He is studied using two different interactions, a microscopic two-body one as well as a phenomenological one including a Skyrme-type three-body force. The results are compared to those of the usual approximate treatment of the center of mass motion in Hartree-Fock calculations. It turns out that, at least for the chosen example, the latter yields a rather reasonable approximation to the correct total energy, single particle energy and even the mass density provided that it is calculated from a translationally invariant density operator. Springer-Verlag, 1990 21.60.Cs nationallicence 21.60.Jz nationallicence Schmid K. Institut für Theoretische Physik der Universität Tübingen, Federal Republic of Germany aut Grümmer F. Institut für Theoretische Physik II der Universität Bochum, Federal Republic of Germany aut Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 336/1(1990-03-01), 5-26 0939-7922 336:1<5 1990 336 218 https://doi.org/10.1007/BF01904157 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01904157 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schmid K. Institut für Theoretische Physik der Universität Tübingen, Federal Republic of Germany aut NATIONALLICENCE 700 1- Grümmer F. Institut für Theoretische Physik II der Universität Bochum, Federal Republic of Germany aut NATIONALLICENCE 773 0- Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 336/1(1990-03-01), 5-26 0939-7922 336:1<5 1990 336 218 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer