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Structure of high-spin states in Pd-100
KTH, Superseded Departments, Physics.
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2001 (English)In: Nuclear Physics A, ISSN 0375-9474, Vol. 686, 41-63 p.Article in journal (Refereed) Published
Abstract [en]

High-spin states of the neutron deficient (100)pd nucleus have been investigated via the Cr-50(Ni-58, 4p alpha) and Zn-70(S-36,6n) heavy-ion induced reactions. For the detection of evaporated particles and gamma 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 (100)pd have been observed, 49 of which were identified for the first time. The level scheme has been extended up to E-X approximate to 16 MeV excitation energy and I approximate to 25h. The experimental results were compared with the predictions of cranked shell model calculations. Maximal spin alignments were found in the (pig(9/2))(12+)(-4) (vd(5/2),g(7/2)(3)h(11/2))(13-) and (pig(9/2)(-3)p(1/2))(11-)(vd(5/2)g(7/2)(3)h(11/2))(13-) configurations. Possible existence of octupole correlations is discussed on the basis of 6 (E 1)lB(E2) values deduced for the decays of high-spin levels in the yrast negative-parity band.

Place, publisher, year, edition, pages
2001. Vol. 686, 41-63 p.
Keyword [en]
Cr-50(Ni-58,4p alpha) and Zn-70(S-36,6n) reactions, NORDBALL and EUROGAM II gamma-ray spectrometers, measured E-gamma, I-gamma, particle-gamma gamma and gamma gamma coincidences, gamma-ray angular correlation and linear polarisation, deduced Pd-100 levels, I, pi, gamma-ray multipolarities, terminating bands, total routhian surface plus cranked shell model, gamma-ray spectroscopy, terminating bands, excited-states, neutron, nuclei, ru-98,ru-99,ru-100, information, nordball, detector, array
URN: urn:nbn:se:kth:diva-20461ISI: 000167628800003OAI: diva2:339156
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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