Possible oblate shape of 92− isomer in 199Tl

Newton, J.O.; Cirilov, S.D.; Stephens, F. S.; Diamond, R.M.

doi:10.1016/0375-9474(70)90650-0

Cited by 72 publications

(17 citation statements)

References 12 publications

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“…The excitation energy of the 9/2-isomer, which is much lower than originally expected, has been discussed by Newton et al [18,19], who also observed rotational bands built on this state, which presumably is of prolate deformation, in the heavier odd thallium isotopes. In the case of 18VT1, comparison with neighbouring oddmass thallium isotopes allowed some spins and parities to be assigned with considerable confidence.…”

Section: Discussionmentioning

confidence: 75%

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: 75%

The?- and?-decay of187Pb

et al. 1981

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“…Several rotational bands based on high-j uniqueparity quasiparticle (qp) states (ff h9/2, ~ h 11/2, ~ ix 3/2) have been reported in recent years in odd nuclei of the transitional region below the double shell closure at 2~ [1][2][3][4][5][6][7]. Hence, it is plausible to expect high spin structures, in the doubly odd nuclei built on intrinsic states just resulting from the vector addition of these qp excitations if the residual proton-neutron interaction does not obscures such a simple picture.…”

Section: Introductionmentioning

confidence: 99%

Particle-rotor model for doubly odd transitional nuclei of the Tl-region

Kreiner

1978

Z Physik A

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A model has been investigated describing a situation in which two noninteracting high-j Nilsson-BCS quasiparticles move in the deformed field of an axially and reflection symmetric rotor. According to the positions of the j-shells with respect to the proton and neutron Fermi surfaces structures of different character emerge referred to as semi-and doubly-decoupled. In particular, strongly Coriolis-distorted bands recently reported in doubly odd T1 nuclei are discussed. Also ~h9/2 bands in neighbouring odd mass TI isotopes are analysed on the same footing. It is shown that the pronounced odd even staggering of the transition energies can be understood as a specific quantal feature associated with the Coriolis interaction.

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“…(Isolde) sur les noyaux de Mercure, Or, Platine, Iridium, Osmium déficients en neutrons [1,2,3,4], ceux obtenus a Berkeley sur les noyaux de Thallium [5], leur comparaison avec les niveaux de Nilsson [6] et les previsions de Kumar et Baranger [7] sugg6r6rent : i) L'existence entre 132 Sn et 2°8Pb d'une zone de noyaux de forme aplatie instable a droite d'une ligne joignant 182Hg et 196W dans la carte des isotopes [8 a 11 ].…”

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188Hg, cas limite des noyaux critiques

Bourgeois¹,

Bouet

Caruette

et al. 1976

J. Phys. France

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Le 18880Hg est étudié par conversion interne et émission γ (spectre direct, en coïncidences, et corrélations angulaires) à partir de la désintégration du 188 81Tl (T½ = 71 s) isotopiquement séparé en ligne à ISOCELE (Orsay). En plus d'une bande fondamentale quasi sphérique et d'une bande déformée (O+) déjà vues par ions lourds, une bande γ et une bande de parité négative 5- 7- 6- 8- 9- sont mises en évidence; des états de vibration octupolaire sont suggérés. Cet ensemble montre comment s'effectue la transition entre noyaux de forme aplatie instable et noyaux critiques (β2 γβ 3 Δ instables)

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Possible oblate shape of 92− isomer in 199Tl

Cited by 72 publications

References 12 publications

The?- and?-decay of187Pb

The?- and?-decay of187Pb

Particle-rotor model for doubly odd transitional nuclei of the Tl-region

188Hg, cas limite des noyaux critiques

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