Phys.Rev. C 108, 014302 (2023)

H.Y.Lu, Z.Liu, Z.H.Li, X.Wang, J.Li, H.Hua, H.Huang, W.Q.Zhang, Q.B.Zeng, X.H.Yu, T.H.Huang, M.D.Sun, J.G.Wang, X.Y.Liu, B.Ding, Z.G.Gan, L.Ma, H.B.Yang, Z.Y.Zhang, L.Yu, J.Jiang, K.L.Wang, Y.S.Wang, M.L.Liu, C.J.Lin, L.J.Sun, N.R.Ma, H.S.Xu, X.H.Zhou, G.Q.Xiao, F.S.Zhang

Reinvestigation of ²²²U in high-precision digital α-decay spectroscopy: Solution to the reduced decay-width anomaly

RADIOACTIVITY ²²²U(α) [from ¹⁸⁶W(⁴⁰Ar, 4n), E=80 MeV, followed by separation of fragments using SHANS separator at HRIFL-Lanzhou]; ²¹⁸Th, ²¹⁴Ra(α)[from ²²²U α decay chain]; measured Eα, Iα, evaporation residues (ER)-α correlations, T_1/2 using DSSD detectors; deduced reduced α-decay width, and analyzed using N_pN_n scheme. ²¹⁸Ac, ²¹⁹Th, ²²⁰Pa(α); measured Eα, and T_1/2. Systematics of reduced α-decay widths for g.s. to g.s. α transitions in even-even Z=84-92, N≥126 isotopes as function of N_pN_n. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.108.014302