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Structure of neutron rich palladium isotopes produced in heavy ion induced fission (1999)

Houry, M. ; Lucas, R. ; Porquet, M.-G. ; [et al.]

Springer

The European physical journal 6 (1999), S. 43-48

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ISSN: 1434-601X

Keywords: PACS: 25.70.Jj Fusion and fusion-fission reaction – 23.20.Lv Gamma transitions and level energies – 21.60.Ev Collective models – 21.60.Jz Hartree-Fock – 27.60.+j 90 〈 A 〈 149

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract: New band structures have been observed in 112Pd, 113Pd, 115Pd and 118Pd produced via the fusion-fission reaction 12C+238U at a bombarding energy of 90 MeV. γ-γ-γ coincidence measurements have been performed with the Euroball III array. The first crossings observed in even-mass palladium up to A=118 are interpreted as the alignment of a νh 11/2 pair. This interpretation is supported by the rotational behavior of odd-mass palladium. Hartree-Fock-Bogoliubov calculations using D1S-Gogny force suggest a similar interpretation consistent with a prolate deformation.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s100500050315

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Two proton high-spin excitations and dipole bands in192Hg (1994)

Coz, Y. ; Redon, N. ; Astier, A. ; [et al.]

Springer

The European physical journal 348 (1994), S. 87-93

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ISSN: 1434-601X

Keywords: 27.80.+w ; 21.10.Hw ; 21.60.Ev

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The192Hg nucleus was populated in the160Gd(36S, 4n) reaction at a beam energy of E=159 MeV. Emittedγ-rays were detected with the EUROGAM array comprising 43 Compton-suppressed large volume Ge detectors. The level scheme of192Hg has been extended up to an excitation energy of E=10.4 MeV and spin I=34 ħ. Two new structures, made of competing ΔI=1 and ΔI=2 transitions have been observed and their connexions with the low-lying levels established. Their lowest levels are located at 6.304 MeV and 6.879 MeV excitation energy. The experimental results are compared with mean-field HF+BCS calculations. It is proposed that the new structures originate from deformation-aligned quasi-proton excitations π(i13/2 * h9/2)K=11 andπ (h9/2) K=8 2 , coupled to rotation-aligned quasi-neutron ν(i13/2)n and quasi-proton π(h11/2)2 excitations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01289594

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