Six-quasiparticle isomer inNd140
作者： C. M. Petrache , R. A. Bark , S. T. H. Murray , M. Fantuzi , E. A. Lawrie
DOI: 10.1103/PHYSREVC.74.034304
关键词:
摘要: A search for isomeric states was performed in the nucleus Nd-140(60)80 using in-beam gamma-ray spectroscopy and Te-126(O-18,4n) reaction. Prompt delayed coincidences were measured with AFRODITE spectrometer pulsed beam delivered by Separated Sector Cyclotron of iThemba LABS. One new isomer identified, spin-parity I-pi=20(+) lifetime T-1/2 >= 400 ns, at an excitation energy E-x=7430 keV. The 10(+) E-x=3619 keV determined to be 32.9(1.8) confirming previously reported value. configuration is assigned based on configuration-dependent cranked Nilsson-Strutinsky (CNS) calculations as a state pi(d(5/2)g(7/2))(10)(+-4)circle times nu(h(11/2)(-2))(10)(+), spin vectors six holes Gd-146(64)82 core fully aligned. (Less)
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