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Signature inversion in the yrast band of Ta-164
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2002 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 65, no 1Article in journal (Refereed) Published
Abstract [en]

Excited states in Ta-164 were populated in the Nd-142(Al-27,5n)Ta-164 reaction and investigated using the AFRODITE spectrometer Arran. The yrast rotational decay sequence Lip to spin 21(-) is identified for the first time and assigned to the pi[514]9/2(-) x nu[660]1/2(+) configuration. A less intense. excited hand is also identified. Low-spin signature inversion is observed in the yrast band, and is compared with the extended total Routhian surface calculations. It is likely that quadrupole pairing plays a role in generating the anomalous signature splitting, but an additional mechanism apart front the assumed mean field and quadrupole pairing interaction may be required to account for the experimental data.

Place, publisher, year, edition, pages
2002. Vol. 65, no 1
Keyword [en]
high-spin states, odd-odd nuclei, rare-earth nuclei, rotational bands, region, identification, spectroscopy, ho-160, shape, model
URN: urn:nbn:se:kth:diva-21265DOI: 10.1103/PhysRevC.65.014308ISI: 000173308000017OAI: diva2:339963
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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