Signature inversion in πi13/2⊗νi13/2 structure in 178Ir
Abstract
High-spin states in 178Ir were investigated by means of in-beam γ-ray spectroscopy techniques using the multidetector array GASP. Excited states of 178Ir were populated through the 159Tb(24Mg, 5n) fusion-evaporation reaction at E(24Mg) = 131-141 MeV. Several rotational bands were observed. Among them, the πi13/2⊗νi13/2 structure has been identified up to spin 36 ?. This band exhibits an anomalous signature splitting and a signature inversion around spin 25 ?.
- Publication:
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European Physical Journal A
- Pub Date:
- May 2001
- DOI:
- 10.1007/s100500170108
- Bibcode:
- 2001EPJA...10..245H
- Keywords:
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- PACS. 21.10.Re Collective levels – 23.20.Lv γ transitons and level energies – 27.70.+q 150 ?A? 189