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Rotational structures and their evolution with spin in Gd-152

Campbell, D. B. (author)
Laird, R. W. (author)
Riley, M. A. (author)
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Simpson, J. (author)
Kondev, F. G. (author)
Hartley, D. J. (author)
Janssens, R. V. F. (author)
Brown, T. B. (author)
Carpenter, M. P. (author)
Fallon, P. (author)
Fischer, S. M. (author)
Lauritsen, T. (author)
Nisius, D. (author)
Ragnarsson, Ingemar (author)
Lund University,Lunds universitet,Matematisk fysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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 (creator_code:org_t)
2007
2007
English.
In: Physical Review C (Nuclear Physics). - 0556-2813. ; 75:6
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • The fusion-evaporation reaction involving a 175 MeV S-36 beam and a Sn-124 target was performed, and the emitted gamma rays were observed with the Gammasphere spectrometer. Significant additions to the level scheme of Gd-152 were made in spite of the relative weakness of the alpha 4n exit channel, being only similar to 2% of the total fusion cross-section. The high-spin behavior of Gd-152 was compared with that of other N=88 nuclei. A striking similarity was observed with Dy-154 and it is therefore suggested that the angular-momentum-induced shape changes that take place in Dy-154 also occur in Gd-152 in the 30-40h spin range. This is supported by Cranked Nilsson-Strutinsky calculations which were used to interpret the high-spin bands. It is found that a better agreement between calculation and experiment is obtained if the Z=64 shell gap increases with a decreasing number of valence particles outside the doubly-closed Gd-146(64)82 nucleus.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Publication and Content Type

art (subject category)
ref (subject category)

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