High-spin states of the neutron deficient 100Pd nucleus have been investigated via the 50Cr(58Ni, 4pα) and 70Zn(36S,6n) heavy-ion induced reactions. For the detection of evaporated particles and y rays the NORDBALL array equipped with ancillary detectors and the EUROGAM II detector system were utilized. By the use of in-beam spectroscopic methods 89 transitions belonging to Pd have been observed, 49 of which were identified for the first time. The level scheme has been extended up to Ex ≈ 16 MeV excitation energy and I ≈ 25ℏ. The experimental results were compared with the predictions of cranked shell model calculations. Maximal spin alignments were found in the (πg9/2)-412+(vd5/2, g37/2h11/2)13- and (πg-39/2P1/2)11-(vd 5/2, g3;7/2h11/2)13- configurations. Possible existence of octupole correlations is discussed on the basis of B(E1)/B(E2) values deduced for the decays of high-spin levels in the yrast negative-parity band.
- Nordball and Eurogam II γ-ray spectrometers
- Nuclear structures: Cr(Ni,4pα) and Zn(S,6n) reactions
ASJC Scopus subject areas
- Nuclear and High Energy Physics