A smoothly terminating rotational band in Zn

Galindo-Uribarri, A.; Ward, D. R.; Ball, G. C.; Janzen, V. P.; Radford, D. C.; Ragnarsson, I.; Headly, D.M.

doi:10.1016/s0370-2693(97)01541-4

Cited by 35 publications

(35 citation statements)

References 11 publications

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“…[18]. Thus, there are now three calculated bands which must be assigned to the two calculated signature partner configurations, [22,13] and [22,23], shown in Fig. 29.…”

Section: −Ementioning

confidence: 99%

“…[18] that the SD1 and SD2 bands should be assigned to the [22,23] configuration with a higher spin content than the [22,13] configuration, which is thus assigned to the SD5 band. A problem with that interpretation is that the SD1 and SD2 bands are essentially signature degenerate which is a typical feature of the [22,13] bands with one neutron hole in the 1f 7/2 orbitals but not for the [22,23] bands with an odd number of f p neutrons. On the other hand, the calculated [22,23] bands might very well become signature degenerate with a small change of the single-particle parameters.…”

Section: −Ementioning

confidence: 99%

“…nomena associated with collective excitations, including superdeformation [10][11][12][13][14][15][16][17][18], favored and unfavored band termination [19,20,23], as well as bands with strong magnetic dipole transitions [21][22][23][24]. Unlike in other mass regimes, almost all high-spin bands in the mass A ∼ 60 region are seen to be connected with the low-spin spherical states in the first minimum of the nuclear potential, let it be by γ rays or proton-or α-decay lines.…”

Section: Introductionmentioning

confidence: 99%

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Extensiveγ-ray spectroscopy of band structures in3062Zn32

et al. 2012

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“…[18]. Thus, there are now three calculated bands which must be assigned to the two calculated signature partner configurations, [22,13] and [22,23], shown in Fig. 29.…”

Section: −Ementioning

confidence: 99%

Section: −Ementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Extensiveγ-ray spectroscopy of band structures in3062Zn32

et al. 2012

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“…7 are shown up to the socalled termination points, i.e., up to the point where the angular-momentum contents of the involved orbitals does not allow for a further angular momentum build up, see Ref. [37], without a significant rearrangement of the nucleons.…”

Section: Hartree-fock Calculations With the T =0 N-p Pairing Confmentioning

confidence: 99%

T=0neutron-proton pairing correlations in the superdeformed rotational bands around60Zn

Dobaczewski

Dudek

Wyss³

2003

Phys. Rev. C

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The superdeformed bands in 58 Cu, 59 Cu, 60 Zn, and 61 Zn are analyzed within the frameworks of the Skyrme-Hartree-Fock as well as Strutinsky-Woods-Saxon total routhian surface methods with and without the T =1 pairing correlations. It is shown that a consistent description within these standard approaches cannot be achieved. A T =0 neutron-proton pairing configuration mixing of signature-separated bands in 60 Zn is suggested as a possible solution to the problem.

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“…[6,9] highlighted the role of cross-shell proton excitations, at least for the understanding of neutron-rich Ni isotopes. Indeed, the importance of particles in orbitals of 0g 9/2 character and, maybe even more, of holes in the 0f 7/2 core orbitals was pointed out already when collective high-spin bands were first observed in the A = 60 region [32][33][34][35]. A few years later, it was concluded [36] that, for low-spin states in configurations of the 59 Cu nucleus, both the spectroscopic quadrupole moment and the quadrupole deformation increase linearly with q = q 1 + q 2 , where q 1 is the total number of f 7/2 holes and q 2 is the total number of g 9/2 particles.…”

Section: Introductionmentioning

confidence: 98%

Single-particle and collective excitations inNi62

et al. 2016

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Background: Level sequences of rotational character have been observed in several nuclei in the A = 60 mass region. The importance of the deformation-driving πf 7/2 and νg 9/2 orbitals on the onset of nuclear deformation is stressed. Purpose: A measurement was performed in order to identify collective rotational structures in the relatively neutron-rich 62 Ni isotope. Method:The 26 Mg( 48 Ca,2α4nγ) 62 Ni complex reaction at beam energies between 275 and 320 MeV was utilized. Reaction products were identified in mass (A) and charge (Z) with the Fragment Mass Analyzer (FMA) and γ rays were detected with the Gammasphere array. Results: Two collective bands, built upon states of single-particle character, were identified and sizable deformation was assigned to both sequences based on the measured transitional quadrupole moments, herewith quantifying the deformation at high spin. Conclusions: Based on Cranked Nilsson-Strutinsky calculations and comparisons with deformed bands in the A = 60 mass region, the two rotational bands are understood as being associated with configurations involving multiple f 7/2 protons and g 9/2 neutrons, driving the nucleus to sizable prolate deformation.

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A smoothly terminating rotational band in Zn

Cited by 35 publications

References 11 publications

Extensiveγ-ray spectroscopy of band structures in3062Zn32

Extensiveγ-ray spectroscopy of band structures in3062Zn32

T=0neutron-proton pairing correlations in the superdeformed rotational bands around60Zn

Single-particle and collective excitations inNi62

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