Staggering of the moments of inertia of very neutron-deficient platinum isotopes

Hagberg, E.; Hansen, P. G.; Hornshøj, P.; Jonson, B.; Mattson, S.; Tidemand-Petersson, P.

doi:10.1016/0370-2693(78)90343-x

Cited by 31 publications

(6 citation statements)

References 21 publications

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“…In the case of 18VT1, comparison with neighbouring oddmass thallium isotopes allowed some spins and parities to be assigned with considerable confidence. If this is true, the 3/2 and 5/2 members of this band would have excitation energies of 80keV and 88keV, respectively, in strong resemblance to the neutron-deficient platinum isotopes [20]. It should be realized though, that it is certainly possible to learn more about these transitions by a continuation of the present study, which was limited with respect to accelerator time.…”

Section: Discussionmentioning

confidence: 78%

The?- and?-decay of187Pb

et al. 1981

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Sources of lSTpb were produced by the 142Nd(~STi, 3n)lSTPb reaction followed by online mass separation of the products. Measurements of 7-7 and e-7 coincidences and half-lives were performed. Two e-emitting states in lSVpb were found with half-lives of 15.2_+0.3 s and 18.3_+0.3 s, respectively. The e-), coincidences yielded excitation energy and possible spin values for a few levels in ~S3Hg. Gamma-transitions in lSVT1 were identified and a level scheme for lS7T1 is proposed on the basis of the coincidence relationships and the level systematics of the heavier odd-thallium isotopes.

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Section: Discussionmentioning

confidence: 78%

The?- and?-decay of187Pb

et al. 1981

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“…5,6 In Pt, a similar (but more complicated) situation has been deduced in the even-mass light isotopes 7 and a large odd-even staggering has been found in the rotational spacings of the ground-state bands of the very neutrondeficient Pt isotopes. 8 In the neighboring odd-proton nuclei (Au and Tl isotopes) the shape coexistence is as-sociated with shell-model intruder states. 5 In particular, the 7ih 9 /2 intruder orbital becomes the ground-state configuration in 185 Au (see Desthuilliers et al 9 and Ekstrom et al 10 ) whereas in the odd-mass Tl isotopes the 7th 9/2 intruder state remains an excited state.…”

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confidence: 99%

Sudden change in the nuclear charge distribution of very light gold isotopes

et al. 1987

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On-line resonance-ionization mass spectrometry has been applied to determine the isotope shift and hyperfine structure of [185][186][187][188][189] Au and 189Aum in the 6s 2S 1 / 2 -6p 2Pl/2 (A =268 nm) transition. The Au atoms were obtained as daughters of mass-separated Hg isotopes produced at the ISOLDE facility at CERN ionized by a three-color, two-step resonant photoionization process, detected and n1ass selected by time of flight. A drastic change of the nuclear charge radius was observed between 187Au and 186Au, which is interpreted as an onset of strong deformation of f3~0.25 in 186Au and 185 Au.

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“…The structure of the very neutron-deficient Pt isotopes needs to be clarified for a number of reasons: (1) There is an emerging picture of an extensive occurrence of shape coexistence at low energy in the region near Z=82 and N--104 (see, e.g., refs. [7,8] and the references above).…”

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confidence: 99%