Isomer-selected decay of the GDR in 156Dy∗
1995; Elsevier BV; Volume: 581; Issue: 1 Linguagem: Inglês
10.1016/0375-9474(94)00416-k
ISSN1873-1554
AutoresJ. P. S. van Schagen, M.N. Harakeh, W.H.A. Hesselink, R.F. Noorman,
Tópico(s)Particle physics theoretical and experimental studies
ResumoThe strength distribution of high-energy γ-rays emitted in the statistical decay of the 156Dy∗ compound nucleus, with E∗ = 92.5 MeV, has been measured inclusively and for selected decay pathways in which isomers in 149Dy, 151Dy and 152Dy were populated. For both spectra a deformation |β| = 0.3 is deduced and the centroid energies agree with those found from ground-state systematics. The high-energy γ-ray spectrum triggered on isomeric decay shows an increase of the width of the GDR in comparison with the inclusive spectrum.
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