Skyrme's interaction beyond the mean-field [Elektronische Ressource] : the DGCM+GOA Hamiltonian of nuclear quadrupole motion / vorgelegt von Peter Klüpfel

Skyrme’s Interaction Beyond the Mean-Field:The DGCM+GOA Hamiltonianof Nuclear Quadrupole MotionDer naturwissenschaftlichen Fakult¨at der¨ ¨Friedrich-Alexander-Universitat Erlangen-NurnbergzurErlangung des Doktorgradesvorgelegt vonPeter Klupfel¨aus Nurn¨ bergAls Dissertation genehmigt von derNaturwissenschaftlichen Fakult¨at der Universit¨at Erlangen-Nurn¨ bergTag der mundlic¨ hen Prufung:¨ 29. Juli 2008Vorsitzender der Promotionskommission: Prof. Dr. Eberhard B¨anschErstberichterstatter: Prof. Dr. Paul–Gerhard ReinhardZweitberich Prof. Dr. Joachim A. MaruhnAbstractSelf-consistent mean-field models based on phenomenologically adjusted effective nucleon-nucleon interactions have approved to provide a substantive description of nuclear groundstate properties all over the table of isotopes. The enormous success of modern Skyrme-type interactions has led to a regime were accounting for correlations beyond the mean-fieldbecomes inevitable.The low-energy spectra of spin-saturated gg-nuclei gives evidence for a low-energy collectivequadrupole mode. Due to the softness in the quadrupole degree of freedom the major partof the correlation energy (beyond mean-field and pairing correlations) is stemming fromquadrupoleshapefluctuations.Thecharacteristiclow-energyspectrumwasfirstexplainedfordoubly-magic nuclei by A. Bohr’s model of the nucleus as a quantized harmonic quadrupoleoscillator.