topics EXPERIMENT Protonrich nuclei including NZ nuclei Neutronrich

会議のtopics EXPERIMENT: • Proton-rich nuclei, including N~Z nuclei • Neutron-rich nuclei • Synthesis and structure of very heavy nuclei • Masses, moments and radii • Decay modes and decay spectroscopy • High spins, including high-spin isomers • Collective phases, many-body symmetries, clustering in nuclei • Warm nuclei and giant resonances • Interface of structure and astrophysics • Interface of structure and reactions • Interface of structure and tests of the Standard Model • Rare isotopes: Beams and facilities, instruments & techniques THEORY: • Nuclear forces & effective interactions • Ab initio theory • Shell Model • Mean-field theories & beyond • Weakly-bound and unbound nuclei: Properties, physics of open channels • Many-body symmetries & clustering in nuclei • Reactions • Interdisciplinary aspects of the nuclear many body problem

発表について • Selected Poster (7 min talk) – Microscopic Approach to Oblate-Prolate Shape Coexistence Phenomena in Nuclei around 68 Se and 72 Kr. • Poster – Importance of Time-odd Mean Field on Large Amplitude Collective Motion

“極限状態”の原子核　(高アイソスピン極限) proton decay　(proton emitter) Ｎ＝Ｚ line 陽子過剰核 (N~Z) shape coexistence exotic shapes p n 密度 proton – neutron pairing -3 Particle density ) (fm 中性子過剰核 (N>>Z) 中性子スキン・中性子ハロー 100 30 Zn (中性子) (陽子) 2 4 6 R (fm) 8 10

極限状態の原子核　～高スピン原子核 http: //nucalf. physics. fsu. edu/~riley/gamma/

変形共存核の例: neutron-deficient Pb isotope 186 Pb A. N. Andreyev et al. , Nature (London) 405 (2000)430. p three 0+ states within 1 Me. V p spherical-oblate-prolate shape coexistence

変形混合を求めるまで 用意するもの： Microscopic Hamiltonian (effective interaction). 1 st Step: ASCC方程式を解いて集団経路を求める Moving-frame HFB 方程式 Moving-frame QRPA　方程式 Double iteration for each q 2 nd Step: 集団Hamiltonianを求める 集団ポテンシャル 質量パラメター 3 rd Step: 集団Hamiltonianを量子化してスペクトルを求める

Ｇ 2: quadrupole pairingの強さ χ: quadrupole interactionの強さ 68 Seの計算 オブレート変形（γ=60°) G 2=0: Kobayasi et al. , PTP 113(2005), 129. 集団ポテンシャル 集団質量 γ プロレート変形(γ=0°) 励起エネルギー Moving-frame QRPA frequenc 集団波動関数 complete mixing