Evidence for Rotational Bands near the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Th</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>232</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow><mml:mo>(</mml:mo><mml:mi>n</mml:mi><mml:mo>,</mml:mo><mml:mi> </mml:mi><mml:mi>f</mml:mi><mml:mo>)</mml:mo></mml:math>Fission Threshold

Blons, J.; Mazur, C.; Paya, D.

doi:10.1103/physrevlett.35.1749

Cited by 104 publications

(29 citation statements)

References 6 publications

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“…The analysis of neutron-induced fission cross sections for 2soTh(n, f) and Th(n, f) [23,24] led to conclusion that their fine details can be understood assuming the presence of two rotational bands with the same K and opposite parities. Rotational parameter derived &om the data, && 2.0 keV, suggests a HD shape, and the positive-negative parity splitting of 10 keV suggests static octupole deformation.…”

Section: Relation Between the Exact And The Second-order Formulamentioning

confidence: 99%

Octupole-induced dipole moments of very deformed nuclei

Skalski¹

1994

Phys. Rev. C

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In order to estimate octupole-induced El strength in very deformed nuclei we calculate their intrinsic dipole moments within the shell correction method. We use the formula for the macroscopic part of the dipole moment derived by Dorso, Myers, and Swiatecki, however, without approximation limiting its validity to small deformations. We obtain rather large dipole moments in superdeformed Hg and Pb nuclei, in agreement with recent Hartree-Fock calculations. This points to the possibility that in these nuclei interband E1 transitions may be detectable in spite of enormous competition of superdeformed intraband E2 transitions. We give also estimates for dipole moments of even more deformed systems.

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Section: Relation Between the Exact And The Second-order Formulamentioning

confidence: 99%

Octupole-induced dipole moments of very deformed nuclei

Skalski¹

1994

Phys. Rev. C

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“…2 will provide a general description of the formalism intended for the evaluation of single-particle excitations, while results concerning the intermediate structure of the fission cross-section will be extensively presented in Sect. 3. Comments are made in Sect.…”

Section: Introductionmentioning

confidence: 99%

Landau-Zener effect in fission

et al. 2007

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Abstract. The structures observed in the sub-threshold neutron-induced fission of 232 Th were investigated employing a recent developed model. Theoretical singleparticle excitations of a phenomenological two-humped barrier are determined by solving a system of coupled differential equations for the motion along the optimal fission path. A rather good agreement with experimental data was obtained using a small number of independent parameters. It is predicted that the structure at 1.4 and 1.6 MeV is mainly dominated by spin 3/2 partial cross-section with small admixture of spin 1/2, while the structure at 1.7 MeV is given by a large partial cross section of spin 5/2.

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“…The analysis of the transmission probability of resonances in prompt fission induced by γ or light particles has suggested the existence of even more deformed isomeric states called hyper-deformed (hd). Such third minima were discovered in [230][231][232][233] Th [4][5][6][7][8][9], 232,234,236 U, and 232 Pa nuclei [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

On possible shape isomers in the Pt-Ra region of nuclei

Nerlo-Pomorska

Pomorski

Bartel³

et al. 2017

Eur. Phys. J. A

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Abstract.A certain number of yet unknown super-and hyper-deformed shape isomeric states are predicted in even-even nuclei of the region between Pt and Ra, using the macroscopic-microscopic model based on the Lublin Strasbourg Drop for the macroscopic energy and shell plus pairing corrections evaluated through the Yukawa-folded mean-field potential for the microscopic part. A new, rapidly converging shape parametrization is used to describe the vast range of nuclear deformations between the ground and the fission isomeric states up to near the scission configuration. Quadrupole moments are evaluated in the local minima and turn out to be in good agreement with the experimental data wherever available.

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Evidence for Rotational Bands near theTh232(n, f)Fission Threshold

Cited by 104 publications

References 6 publications

Octupole-induced dipole moments of very deformed nuclei

Octupole-induced dipole moments of very deformed nuclei

Landau-Zener effect in fission

On possible shape isomers in the Pt-Ra region of nuclei

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