Two particle intrinsic excitations in 22Ne and 26Mg

Craig, G.D.

doi:10.1016/0375-9474(74)90356-x

Cited by 16 publications

(4 citation statements)

References 29 publications

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“…The experimental evidence for collective behaviour of positive-parity states is practically exhausted with the preceding identifications of rotational bands. It appears that these levels form the K~= 2 + band which is contained in the work of Craig [6]. In one instance it is possible to observe some systematics.…”

Section: 25mentioning

confidence: 91%

“…As a starting point of the discussion we use the model of Craig [6], who described 26Mg as a rigid rotor plus two valence neutrons which can occupy a total of 16 Nilsson-type configurations subject to the Coriolis-and a residual two-body interaction. This model was successful in accounting for most levels below 5 MeV excitation energy.…”

Section: Collective Properties Of 26mg States From Experiments and Shementioning

confidence: 99%

“…A study of high-spin states in 26Mg is desirable from the points of view of both the shell model and the collective model. PHY-85-09736 ter of debate [3][4][5] in spite of progress [2,6] with a rotational model analysis. PHY-85-09736 ter of debate [3][4][5] in spite of progress [2,6] with a rotational model analysis.…”

Section: Introductionmentioning

confidence: 99%

“…The level scheme ofFig. The present work gives additional levels at6,634, 7,822, 7,840, 8,233, 8,464, 8,508 and 9,020 KeV excitation energy. which was obtained from an investigation of the 26Mg(p, p') reaction.…”

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confidence: 96%

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High-spin states in26Mg

Glatz

Norbert

Bitterwolf

et al. 1986

Z. Physik A - Atomic Nuclei

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The 7-decays of levels in 26Mg have been investigated up to 12.5 MeV excitation energy by proton-7-ray coincidence measurements in the Z3Na(0~,pT) reaction at 14.2 and 16 MeV bombarding energy. Lifetime-measurements, made with the Doppler-shift attenuation method, and proton-7-ray angular-correlation measurements were performed at E,= 14.2 MeV. Many high-spin states were observed, among them levels at 6,978989(6 +) and 12,479(8 +, 7-) keV excitation energy. The spectrum of positive-parity states and their electromagnetic properties are reproduced with good accuracy by shell-model calculations which employ a unified s-d shell Hamiltonian and the unrestricted configuration space of the 0ds/2-1s1/2-0d3/~ shell. Members of five inferred rotational bands, with K~= 0 +, 2 +, 3 +, 0 + and 3-have been observed up to at least I= 6. The K~= 2 + band shows strong anomalies of excitation energies and E2 transition rates near the I= 6 state. The static intrinsic quadrupole moments calculated from the shell model wave functions indicate transitions from prolate to oblate deformation within the K~= 2 + band and also the ground state band. The lowest lying U =4 +. state appears to be "spherical" and cannot be associated with a rotational band.

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Section: 25mentioning

confidence: 91%

Section: Collective Properties Of 26mg States From Experiments and Shementioning

confidence: 99%