Fine structure of α decay in 222Pa

• 作者: Wei Hua Zhiyuan Zhang Long Ma Zaiguo Gan Huabin Yang Cenxi Yuan Minghui Huang Chunli Yang Mingming Zhang Yulin Tian Xiaohong Zhou
• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: NUCLEAR PHYSICS
• 页码范围: 192-197
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1137/abdea8

摘要

With the help of the gas-filled recoil spectrometer SHANS and a digital data acquisition system,the fine structure of the α decay for 222pa was studied.The nuclides were produced through the lp3n evaporation channel via the heavy-ion induced fusion evaporation reaction 40Ar + 186W.Based on the ER-α1-α2-α3 and α-γcorrelation measurement,three new α decays were observed in addition to the three branches known previously.The one with the largest α decay energy was regarded as the ground state to ground state transition.The newly measured α decay properties of 222pa were examined in a framework of reduced width.