Proton-neutron interaction at N≅Z — First observation of the Tz=1 nucleus4694Pd48 in-beam
Proton-neutron interaction at N≅Z — First observation of the Tz=1 nucleus4694Pd48 in-beam
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N≅Z 处的质子-中子相互作用 — 首次观察到 Tz=1 核 4694Pd48 光束内
DOI：
10.1007/bf01292324
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
K. Spohr
中科院分区：
文献类型：
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作者：
M. Górska;H. Grawe;D. Foltescu;D. Fossan;R. Grzywacz;J. Heese;K. Maier;M. Rejmund;H. Roth;R. Schubart;Ö. Skeppstedt;K. Spohr
用在束能谱首次对缺中子核~（94）Pd进行了鉴定和研究。在多探测器γ阵列OSIRIS内的反冲捕集器装置中观察到Iπ=（14+）异构体，t1/2=0.8（2）μs。中子和带电粒子的过滤探测器被用来识别反应58 Ni +40 Ca的（2 p2 n）出口通道，仅占总蒸发残渣截面的0.06%。在（p1/2，g9/2）模型空间的壳模型计算框架内讨论了异构体的结构，重点是g92/2 T=0，I= 1，9“配对”二体矩阵元。
The neutron deficient nucleus94Pd was identified and studied for the first time by in-beam spectroscopy. An Iπ=(14+) isomer with t1/2=0.8 (2) μs was observed in a recoil catcher setup inside the multi-detector γ-array OSIRIS. Filter detectors for neutrons and charged particles were used to identify the (2p2n) exit channel of the reaction58Ni+40Ca, populated with only 0.06% of the total evaporation residue cross section. The structure of the isomer is discussed within the frame work of shell model calculations in the (p1/2,g9/2) model space with emphasis on the g92/2 T=0, I=1,9 ”pairing” two-body matrix elements.