Properties of low-lying levels in the even platinum nuclei (182 ≦ A ≦ 192)

Finger, M.; Foucher, R.; Husson, Jean-Claude; Jastrzȩbski, J.; Johnson, A.; Astner, G.; Erdal, B.R.; Kjelberg, A.; Patzelt, P.; Höglund, Anders; Malmskog, S.G.; Henck, R.

doi:10.1016/0375-9474(72)90064-4

Cited by 156 publications

(17 citation statements)

References 48 publications

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“…3, in which the energies of the (+, 0) levels are plotted vs. mass number of even-mass Pt nuclei. It can be seen that the energies of the gb members increase with mass number displaying a significant change between 186pt and 188Pt, which is interpreted as a transition from predominantly prolate to predominantly oblate shape [1,5,14]. The members of the predominantly oblate i 13/2 two-quasineutron bands in 188, 190, 192pt [1,5,15] connected by dashed lines show a slight decrease of the excitation energy with increasing mass number.…”

Section: The Level Systematicsmentioning

confidence: 89%

Evidence for shape coexistence in186Pt

Hebbinghaus

Gast

Krämer–Flecken

et al. 1987

Z. Physik A - Atomic Nuclei

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High-spin states in 186pt have been populated by the 188Os (e, 6n) reaction and were investigated with the OSIRIS spectrometer. A shape coexistence at high spins was established in the nucleus 186pt, which lies on the border between light prolate and heavy oblate Pt nuclei. Two bands corresponding to predominantly prolate shapes and one band of predominantly oblate shape have been observed. For prolate shapes a (7rh9/2) 2 alignment and for oblate shapes a(vi13/2) 2 alignment has been found.

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Section: The Level Systematicsmentioning

confidence: 89%

Evidence for shape coexistence in186Pt

Hebbinghaus

Gast

Krämer–Flecken

et al. 1987

Z. Physik A - Atomic Nuclei

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“…See [55] and [57] for details, r f12 values extracted from known ~ (r 2) using weighted least squares fit [ 14]. g Experimental data taken from [65] (A = 176, 178), [661 (A = 180), [91] (A = 184), [92] (182 <A < 192), [93] (A= 186), [94] [53,59] and its effect on the pairing energy discussed theoretically. We Mve investigated the single~o.8 particle level spectrum in the 7-plane (0~ ?…”

Section: Particle-triaxial Rotor Calculationmentioning

confidence: 99%

Ground-state properties of neutron-deficient platinum isotopes

Hilberath

Becker

Bollen

et al. 1992

Z. Physik A - Hadrons and Nuclei

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The hyperfine structure splitting and the isotope shift in the ,~ = 266 nm transition of Pt isotopes within the mass range 183 _< A ~< 198 have been determined by Resonance Ionization Mass Spectroscopy (RIMS) in combination with Pulsed-Laser Induced Desorption (PLID). The Pt isotopes were obtained at the on-line isotope separator ISOLDE-3/CERN as daugthers of the primarily produced Hg isotopes. Magnetic moments, quadrupole moments, and changes in the mean-square charge radii are deduced and compared with results of a particle-triaxial rotor model and mean field calculations. Good agreement with experimental data (including nuclear level schemes and transition probabilities) can only be obtained if triaxial shape is admitted. The calculations yield a smooth transition in the shape of odd-A Pt nuclei from a slightly deformed, nearly oblate ~95pt via triaxial 193-187pt to a strongly deformed nearly prolate t77pt.

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“…Although extensive experimental work [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] have been done on the level structure of a92Os and 192pt, a number of discrepancies and ambiguities regarding the existence of several low-lying levels below 1.5 MeV remain. Although extensive experimental work [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] have been done on the level structure of a92Os and 192pt, a number of discrepancies and ambiguities regarding the existence of several low-lying levels below 1.5 MeV remain.…”

Section: Introductionmentioning

confidence: 99%

Studies on the low-lying levels in192Pt and192Os populated in192Ir decay

Liu

Dailing

Hueibin

et al. 1988

Z. Physik A - Atomic Nuclei

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Low-lying levels in ~9ZOs and 192pt are reinvestigated through 192Ir (73.831d) decay with improved system performance and counting statistics. Experiments show that gamma rays reported in literature with energies 1413, 1237, 1147, 911, 773, 629, 362 and 325 keV are not from the decay of 192Ir and gamma rays reported with energies 1200, 1056, 920, 904, 784 and 624 keV are resulted from sum-up or pile-up effects of low energy intensive gamma rays. New gamma-gamma coincidence relations are obtained with 105 cm3-110 cm 3 germanium detector system. A level at 1384 keV is established in the decay scheme and four newly proposed levels at 1118.31 keV in 192Os and 1146.95, 1237.35 and 1413.76 keV in 192pt are excluded from the decay scheme. Predictions of Interacting Boson Model on level energies and E2 absolute reduced transition probabilities are compared with experimental results.

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Properties of low-lying levels in the even platinum nuclei (182 ≦ A ≦ 192)

Cited by 156 publications

References 48 publications

Evidence for shape coexistence in186Pt

Evidence for shape coexistence in186Pt

Ground-state properties of neutron-deficient platinum isotopes

Studies on the low-lying levels in192Pt and192Os populated in192Ir decay

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