%0 Journal Article %T Microscopic approach to collective motion %+ Service de Physique Théorique (SPhT) %+ Institut de Physique Nucléaire de Lyon (IPNL) %+ Computer Science Department (CS CALTECH) %+ Institut de Physique Nucléaire d'Orsay (IPNO) %+ Institute of Physics, University of Tokyo %+ Lawrence Livermore National Laboratory (LLNL) %A Bonche, P. %A Chabanat, E. %A Chen, B., Q %A Dobaczewski, J. %A Flocard, H. %A Gall, B. %A Heenen, P.H., H %A Meyer, J. %A Tajima, N. %A Weiss, M.S. %< avec comité de lecture %@ 0375-9474 %J Nuclear Physics A %I Elsevier %V 574 %N 1-2 %P 185c-205c %8 1994-07 %D 1994 %R 10.1016/0375-9474(94)90045-0 %Z Physics [physics]/Nuclear Theory [nucl-th]Journal articles %X An overview of a microscopic framework based on the Hartree-Fock description of the mean field is presented which, starting from an effective interaction allows a description of collective motions. A study of the isotope shifts in the Pb region illustrates the importance of the effective interactions and points to their limitations. Such forces should be improved in order to achieve a better description of nuclei properties especially with the coming availability of exotic beam facilities. The coupling of collective quadrupole and octupole degrees of freedom in $^{194}$Pb is analyzed within the Generator Coordinate Method, which represents a step beyond the simple mean-field approximation. As a last example, we present a study of nuclear rotations. First we discuss results on superdeformed rotating bands in $^{192}$Hg, $^{194}$Hg and $^{194}$Pb obtained without including a treatment of pairing correlations. Preliminary calculations are also presented with these correlations included as well as an approximate projection on nucleon number. %G English %2 https://cea.hal.science/cea-02928290/document %2 https://cea.hal.science/cea-02928290/file/Bonc6.pdf %L cea-02928290 %U https://cea.hal.science/cea-02928290 %~ IN2P3 %~ CEA %~ IPNO %~ CNRS %~ UNIV-LYON1 %~ UNIV-PSUD %~ DSM-IPHT %~ UNIV-PARIS-SACLAY %~ UNIV-PSUD-SACLAY %~ CEA-DRF %~ IP2I %~ UDL %~ UNIV-LYON %~ CMS %~ IPM %~ PHABIO %~ MANOIR %~ THEORIE %~ COSMOLOGIE %~ MATNUC %~ NEUTRINOS_IP2I %~ ONDES_GRAVITATIONNELLES %~ MATICE