Phys.Rev. C 98, 044302 (2018)

T.H.Huang, W.Q.Zhang, M.D.Sun, Z.Liu, 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, Z.H.Li, J.Li, X.Wang, H.Y.Lu, A.H.Feng, C.J.Lin, L.J.Sun, N.R.Ma, D.X.Wang, F.S.Zhang, W.Zuo, X.H.Zhou, H.S.Xu, G.Q.Xiao

Identification of the new isotope ²²⁴Np

NUCLEAR REACTIONS ¹⁸⁷Re(⁴⁰Ar, 3n)²²⁴Np, E=188 MeV; measured evaporation residues (ERs), Eα, Iα of decaying ERs, production σ using SHANS separator and a double-sided silicon strip detector for α detection at SFC-HIRFL, Lanzhou; deduced evidence for the production of new isotope ²²⁴Np through the observation of six correlated α-decay chains, starting from ²²⁴Np to ²¹²Fr.

RADIOACTIVITY ²²⁴Np, ²²⁰Pa, ^220mPa, ²¹⁶Ac(α)[from ¹⁸⁷Re(⁴⁰Ar, 3n)²²⁴Np, E=188 MeV, and successive α decays]; measured Eα, Iα, half-lives, αα-correlations. ²²⁰Pa, ²¹⁶Ac, ²¹²Fr; deduced levels, isomer in ²²⁰Pa.

doi: 10.1103/PhysRevC.98.044302