連続講義シリーズ コースX "Oneparticle motion in nuclear manybody problem"
講師：浜本育子氏 (ルンド大学)
講義内容


第一回 【poster】 

The study of oneparticle motion in the mean field is the basis for understanding the structure of manybody systems ; not only oneparticle states but also collective modes and manybody correlations. In the case of nuclear system some examples of interesting mean fields are a basic onenucleon potential, a potential for quasiparticles (pair correlation), a rotating potential (highspin physics), etc. I begin with wellbound, weaklybound, and resonant onenucleon levels in spherical and deformed potentials, focusing attention mainly on deformation and neutrondripline nuclei. 【講義ノート】  
第二回 【poster】 

In this second lectures, V.2, first, the effective oneparticle operators with eeff(Eλ) and geff(Mλ) ofelectromagnetic transitions in the spherical case are reviewed. Then, the energies and electromagnetic moments in the laboratory system are examined, when the shape in the bodyfixed system is deformed. The list of the contents : 6. Energy and electromagnetic observables of oneparticle configurations 6.1. Spherical case effective (E2, M1, E1) oneparticle operators 6.2. From Y20 deformed intrinsic system to laboratory system 6.3. Energies with Y20 deformed intrinsic shape 6.4. Electromagnetic (M1, E2, E1) properties of the system with Y20 deformed intrinsic shape
 
第三回 【poster】 
2008年12月24日(水) １コマ目: 13:30〜15:00 休憩 2コマ目: 15:30〜17:00 会場: 仁科ホール、理研 
As an example of collective motion based on particlehole excitations, a view of various kinds of socalled giant resonance (GR) is given. In contrast to lowlying collective modes (for example, 2+ and 3 collective states), the properties of GRs are insensitive to the oneparticle shellstructure around the Fermi level.
We start with (modelindependent) sum rules, the major part of which are often consumed by respective GRs. Then, both GRs as excitations within the same nuclei and chargeexchange GRs (excitations to the neighboring nuclei) are described, taking examples mostly from stable nuclei where experimental data are available. Finally, some characteristic features of chargeexchange GRs in nuclei far away from the betastability line are mentioned.
Since the degrees of freedom corresponding to giant resonances are often not included in calculable theoretical models (ex. shell model), the presence and the properties of GRs appear as a renormalization of oneparticle operators to be used in such models. 【講義ノート】 
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