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Testing mean-field ...
Testing mean-field models near the N=Z line : gamma-ray spectroscopy of the T-z=1/2 nucleus Kr-73
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Kelsall, N. S. (author)
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Fischer, S. M. (author)
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Balamuth, D. P. (author)
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Ball, G. C. (author)
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Carpenter, M. P. (author)
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Clark, R. M. (author)
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Durell, J. (author)
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Fallon, P. (author)
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Freeman, S. J. (author)
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Hausladen, P. A. (author)
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Janssens, R. V. F. (author)
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Jenkins, D. G. (author)
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Leddy, M. J. (author)
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Lister, C. J. (author)
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Macchiavelli, A. O. (author)
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Sarantites, D. G. (author)
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Schmidt, D. C. (author)
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Seweryniak, D. (author)
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Svensson, C. E. (author)
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Varley, B. J. (author)
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Vincent, S. (author)
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Wadsworth, R. (author)
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Wilson, A. N. (author)
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Afanasjev, A. V. (author)
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Frauendorf, S. (author)
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- 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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- Wyss, Ramon (author)
- KTH,Fysik
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(creator_code:org_t)
- 2002
- 2002
- English.
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In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 65:4
- Related links:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Subject headings
Close
- Excited states in the N=Z+1 nucleus Kr-73 have been investigated using the Ca-40(Ar-36,2pn) and Ca-40(Ca-40,alpha2pn) reactions at 145 and 160 MeV, respectively. gamma rays were detected using the Gammasphere array and events were recorded in coincidence with charged-particle and neutron detectors. The three previously observed bands were extended to high spin, and a new unfavored positive-parity band has been observed. The alignment characteristics and decay properties of the bands are all consistent with large-deformation prolate rotation, with no clear evidence for oblate bands or shape coexistence. This is quite different from neighboring Kr-72,Kr-74, indicating a strong shape-stabilizing role for the valence neutron. The experimental results are compared to extended total Routhian surface, cranked Nilsson Strutinsky, and cranked relativistic mean-field calculations. The results suggest that the paired calculations lack some important physics. Neutron-proton correlations may be the missing ingredient. There is also evidence for an unusual band crossing in the negative-parity bands, which may indicate the presence of T=0 pairing correlations. At high spin all the models can reproduce the experimental data.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- = z nuclei
- oblate shape-coexistence
- rotational bands
- mass region
- high-spin
- states
- t=0
- identification
- alignment
- collectivity
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Kelsall, N. S.
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Fischer, S. M.
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Balamuth, D. P.
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Ball, G. C.
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Carpenter, M. P.
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Clark, R. M.
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show more...
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Durell, J.
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Fallon, P.
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Freeman, S. J.
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Hausladen, P. A.
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Janssens, R. V. ...
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Jenkins, D. G.
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Leddy, M. J.
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Lister, C. J.
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Macchiavelli, A. ...
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Sarantites, D. G ...
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Schmidt, D. C.
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Seweryniak, D.
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Svensson, C. E.
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Varley, B. J.
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Vincent, S.
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Wadsworth, R.
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Wilson, A. N.
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Afanasjev, A. V.
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Frauendorf, S.
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Ragnarsson, Inge ...
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Wyss, Ramon
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physical Review ...
- By the university
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Royal Institute of Technology
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Lund University