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BETA DECAY OF EXOTIC NUCLEI CLOSE TO ~(100)Sn: ~(94)Ag AND ~(100)In

机译:接近〜(100)Sn的外来核的β衰变:〜(94)Ag和〜(100)In

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摘要

The β decay of the proton-rich nuclei ~(94)Ag and ~(100)In was investigated at the GSI on-line mass separator by using different arrays of Ge and Si detectors, as well as a total absorption spectrometer (TAS). The preliminary analysis of the βγγ coincidences in case of ~(94)Ag confirms the existence of all γ rays observed in a previous measurement and forms the basis for an improved decay scheme. In the case of ~(100)In, the population of states up to the 8~+ yrast state in ~(100)Cd has been identified from βγγ coincidences. The experimental β feeding measured in the TAS is compared to predictions of large-scale shell-model calculations, which favour a spin and parity of 6~+ for the ~(100)In ground state.
机译:使用不同的Ge和Si检测器阵列以及总吸收光谱仪(TAS)在GSI在线质量分离器上研究了富质子核〜(94)Ag和〜(100)In的β衰变。对〜(94)Ag情况下的βγγ符合性的初步分析证实了先前测量中观察到的所有γ射线的存在,并为改进的衰减方案奠定了基础。在〜(100)In的情况下,已根据βγγ巧合确定了〜(100)Cd中直至8〜+ yrast状态的状态群。将TAS中测得的实验性β进料与大规模壳模型计算的预测值进行比较,这对于〜(100)处于基态时有利于6〜+的自旋和奇偶性。

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