Study of Decay Modes from Nuclear Deep Hole States

核洞国家已经提供了对核系统中存在的直接证据。However，我们没有关于高兴奋的深洞状态的衰退模式的丰富信息，当扩散宽度控制或存在较大的逃跑宽度时，直到现在。核深洞国家也有与高核的结构和衰变密切的连接，并与水Cerenkov探测器的核衰变测量相关。在我们开发了瘦核D116-D10目标（a pair of SiOD22 y D2 and Si of 2 mg/cm y D12 y D1） and a Peltier cooling system， we have measured the y D112 y D1C（p，2 p）y D111 B y D1* y D1 and y D116 y D1O（p，2 p）Y D115 Y D1 N Y D1* Y D2 p D2 = 392 MeV在衰变电荷粒子（p、d、t和α）中的s孔状态（关于中子和γ衰变的新的实验性建议刚刚批准）。大大学核物理学研究中心的实验已经完成，使用双臂光谱仪和ΔE-E SSD-球望远镜，已经发现α衰变概率被抑制在两个s洞国家的光谱中，它们的大Q值。我们的研究结果表明，通过统计模型的计算，我们不能通过统计模型的计算来复制，但在很高的程度上符合微观集群模型的计算，以确保从门s-hole国家的衰减。在s-hole国家展示两个或三个碰撞结构的刺激能量特别方案，谁建议将s-hole国家分割成一些不同的组件？

Nuclear hole states have provided direct evidence of the existence of inner orbital shell structure in nucleus. However, we did not have rich information on the decay modes of the highly excited deep-hole states whether the spreading width dominates or there exists the large escape width, until now. Nuclear deep hole states also have a close connection with the structure and decay of hypernuclei and are relevant to the nucleon decay measurement with the water Cerenkov Detector.After we developed the thin ィイD116ィエD10 target (a pair of SiOィイD22ィエD2 and Si of 2 mg/cmィイD12ィエD1) and a Peltier cooling system, we have measured the ィイD112ィエD1C(p,2p)ィイD111ィエD1BィイD1*ィエD1 and ィイD116ィエD1O(p,2p)ィイD115ィエD1NィイD1*ィエD1 reaction at EィイD2pィエD2 = 392 MeV together with decay charged particles (p,d,t and α) from s-hole states in ィイD111ィエD1B and ィイD115ィエD1N (A new experimental proposal on the neutron and γ decay has just approved as well.) The experiment has been performed at the Research Center for Nuclear Physics, Osaka University, using the double-arm spectrometer and ΔE-E SSD-ball telescope.α decay probabilities have been found to be suppressed in both s-hole states in spite of their large Q-values. Our results of decay branching ratios can not be reproduced by the statistical model calculation but are qualitatively consistent with the calculation of the microscopic cluster model assuming the decay from the doorway s-hole states. The excitation energy spectra around s-hole states show two or three bump structures, which suggests that the s-hole states split into some different components.