Phys.Rev. C 99, 054307 (2019)

E.Parr, R.D.Page, D.T.Joss, F.A.Ali, K.Auranen, L.Capponi, T.Grahn, P.T.Greenlees, J.Henderson, A.Herzan, U.Jakobsson, R.Julin, S.Juutinen, J.Konki, M.Labiche, M.Leino, P.J.R.Mason, C.McPeake, D.O'Donnell, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, J.P.Revill, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Simpson, J.F.Smith, M.Smolen, J.Sorri, S.Stolze, A.Thornthwaite, J.Uusitalo

Fine structure in the α decay of ¹⁵⁶Lu and ¹⁵⁸Ta

RADIOACTIVITY ^156mLu, ^158mTa(α)[from ¹⁰⁶Cd(⁵⁸Ni, X), E=318 MeV using RITU separator and GREAT spectrometer at the accelerator laboratory of the University of Jyvaskyla]; measured Eα, Iα, Eγ, Iγ, αγ-coin using HPGe and planar Ge strip detectors for γ detection, and double-sided silicon strip detectors and silicon PIN diode detectors for α detection; deduced fine structure in the α decay of high-spin isomers in ¹⁵⁶Lu and ¹⁵⁸Ta. ¹⁵²Tm, ¹⁵⁴Lu; deduced levels, J, π, α-branching ratios, α-reduced decay widths, and α-hindrance factors, configurations. ^152mHo, ^154mTm, ^156mLu, ^158mTa(α); systematics of α-decay hindrance factors, and excitation energies, Jπ values and configurations in daughter nuclides of ¹⁴⁸Tb, ¹⁵⁰Ho, ¹⁵²Tm, ¹⁵⁴Lu. ¹⁵²Er, ¹⁵³Tm, ^154,155Yb, ¹⁵⁵Lu, ^157,158Hf, ¹⁵⁷Ta, ^159,160W(α); measured (ER)α correlated spectra.

doi: 10.1103/PhysRevC.99.054307