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Quasiparticle alignments and alpha-decay fine structure of Pt-175

Peura, P. (author)
Scholey, C. (author)
Joss, D. T. (author)
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Juutinen, S. (author)
Julin, R. (author)
Bäck, Torbjörn (author)
KTH,Kärnfysik
Cederwall, Bo (author)
KTH,Kärnfysik
Greenlees, P. T. (author)
Jakobsson, U. (author)
Jones, P. (author)
Judson, D. S. (author)
Ketelhut, S. (author)
Labiche, M. (author)
Leino, M. (author)
Nyman, M. (author)
O'Donnell, D. (author)
Page, R. D. (author)
Rahkila, P. (author)
Ruotsalainen, P. (author)
Sandzelius, M. (author)
Sapple, P. J. (author)
Sarén, J. (author)
Simpson, J. (author)
Thomson, J. (author)
Uusitalo, J. (author)
Watkins, H. V. (author)
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 (creator_code:org_t)
2014
2014
English.
In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 89:2, s. 024316-
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Excited states and decay properties of Pt-175 have been investigated using the Mo-92(Sr-86, 2pn) fusion-evaporation reaction. The JUROGAM I gamma-ray spectrometer and the GREAT spectrometer were used in conjunction with the gas-filled recoil separator RITU for the measurement of the radiation at the target and focal plane positions, respectively. Two new band structures, assigned to be based on the I-pi = (7/2(-)) ground state in Pt-175, have been established and the known yrast band has been extended up to I-pi = (49/2(+)). Rotational properties of the excited states in Pt-175 have been investigated within the cranked shell-model formalism. The low-frequency changes in the alignments of the positive-and negative-parity bands are interpreted as a sign of proton-pair excitations in the rotating core. Furthermore, the alpha-decay measurements reveal a candidate for a fourth alpha-decay branch in Pt-175, feeding a non-yrast state in Os-171.

Subject headings

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

Keyword

Deficient Platinum Isotopes
Coincidence Data Sets
Nuclear-Data Sheets
Total Data Readout
Shape Coexistence
Neutron-Deficient
High-Spin
Barrier Penetrabilities
Quadrupole-Moments
Even-Even

Publication and Content Type

ref (subject category)
art (subject category)

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