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    • LIFETIME OF THE 99rh 7/21+ STATE FROM FAST-TIMING MEASUREMENTS

    I. R. B. Vasilev,S. Kisyov,S. Lalkovski,N. Marginean,C. Mihai,L. Atanasova,D. Bucurescu,Gh Cata-Danil,I Cata-Danil, D. Ivanova,R. LiCa, N. Florea,R. Marginean,A. Negret

    ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT（2024）

    Sofia Univ St Kl Ohridski

    Cited 0|Views1
    Abstract
    The structure of the lowest-lying positive-parity states in Rh-99 was studied via in-beam fast-timing measurements performed with the hybrid RoSphere multidetector array. The half-life T-1/2 = 405 (20) ps, obtained for the 7/2(1)(+) state, suggests that the M1 component of the 7/2(1)(+) -> 9/2(1)(+) transition is hindered with respect to the single-particle estimates by two orders of magnitude, while the E2 component is enhanced, similarly to other odd-A nuclei in this region.
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    【要点】：本文通过快时间测量研究了Rh-99中最低正宇称态的结构，发现7/2(1)(+)态的半衰期远长于单粒子估计，其M1跃迁成分受阻，而E2成分增强。
    

    【方法】：研究采用了在束流快时间测量的方法，使用RoSphere混合多探测器阵列。
    

    【实验】：实验通过RoSphere阵列完成，数据集未明确提及，但测量得到7/2(1)(+)态的半衰期为405(20)ps。