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Signature inversion in the yrast band of Ta-164

Roux, D. G. (author)
Gueorguieva, E. (author)
Babu, B. R. S. (author)
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Aschman, D. G. (author)
Benatar, M. (author)
Fearick, R. (author)
Fetea, M. S. (author)
Lawrie, J. J. (author)
Mabala, G. K. (author)
Mullins, S. M. (author)
Murray, S. T. H. (author)
Naguleswaran, S. (author)
Newman, R. T. (author)
Rigollet, C. (author)
Sharpey-Schafer, J. F. (author)
Smit, F. D. (author)
Whittaker, W. J. (author)
Wyss, Ramon A. (author)
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2002
2002
English.
In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 65:1
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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.

Keyword

high-spin states
odd-odd nuclei
rare-earth nuclei
rotational bands
region
identification
spectroscopy
ho-160
shape
model

Publication and Content Type

ref (subject category)
art (subject category)

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