New aspects of the rotational model in25Mg

Röpke, H.; Hammel, G.; Brendler, W.; Betz, P.; Glattes, V.

doi:10.1007/bf01668665

Cited by 23 publications

(12 citation statements)

References 15 publications

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“…The investigations with the 24Mg(d, py) reaction are the continuation of previous work [- [10][11][12] with higher statistical accuracy. The combina-tion of these reactions made possible the observation of levels with spins 1/2 < I_< 15/2.…”

Section: ] New Shell-model Calculations In the Unrestrictedmentioning

confidence: 61%

“…The low-lying states with I < 9/2 reflect the spectrum of a prolate deformed system [14]. At higher spin the experimental situation is still rather confusing [9,12,13]. At higher spin the experimental situation is still rather confusing [9,12,13].…”

Section: ] New Shell-model Calculations In the Unrestrictedmentioning

confidence: 96%

“…The combina-tion of these reactions made possible the observation of levels with spins 1/2 < I_< 15/2. Previous studies with the same reaction [12,13] were confined to the accumulation of y-ray singles spectra using Compton-suppressed and pair spectrometers. The investigations with the 24Mg(d, py) reaction are the continuation of previous work [- [10][11][12] with higher statistical accuracy.…”

Section: ] New Shell-model Calculations In the Unrestrictedmentioning

confidence: 99%

“…The /4Mg(d, py) reaction has been used previously in this laboratory to investigate decay modes [10], lifetimes [11], and spins [12] of/SMg levels. In the present work we have used a very similar set-up to measure p-7 angular-correlations with the goal of obtaining spin assignments/restrictions to 25Mg levels above 6 MeV excitation energy.…”

Section: The 24mg(d Py) Reactionmentioning

confidence: 99%

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The structure of25Mg

Heidinger

Betz

Brendler

et al. 1991

Z. Physik A - Hadrons and Nuclei

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Gamma-decay modes and spin(-parity) assignments of levels in 25Mg have been systematically investigated up to 10 MeV excitation energy by particle-y-ray angularcorrelation measurements with the 24Mg(d, PY) reaction at 6.5 MeV bombarding energy and with the 22Ne(e, ny) reaction at 11.8, 12.5, 14.4 and 15.5 MeV bombarding energy. A level scheme has been established which is comprehensive up to 8.3 MeV excitation energy for I<9/2 and up to 10 MeV for 9/2

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Section: ] New Shell-model Calculations In the Unrestrictedmentioning

confidence: 61%

Section: ] New Shell-model Calculations In the Unrestrictedmentioning

confidence: 96%

Section: ] New Shell-model Calculations In the Unrestrictedmentioning

confidence: 99%

Section: The 24mg(d Py) Reactionmentioning

confidence: 99%

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The structure of25Mg

Heidinger

Betz

Brendler

et al. 1991

Z. Physik A - Hadrons and Nuclei

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“…It can now be extended to the J==5/2 and 11/2-levels, respectively. These levels have recently been observed [28,29] in 2SMg. Their obvious counterparts in 27Mg (Tables 1, 2) are the J'~=5/2-level at E x =5372keV and the J~=5/2--11/2-level at E x = 5829 keV.…”

Section: Negative-parity States and The Nilsson-moddmentioning

confidence: 88%

The structure of27Mg from the26Mg(d, p?) reaction

et al. 1977

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The excited states of 27Mg have been investigated up to E~=7976 keV using the 26Mg(d, py) reaction. A measurement of proton-y-ray angular correlations at E~=6.5 MeV has yielded spin-parity assignments or restrictions of levels up to E x = 6508 keV and accurate excitation energies and branching ratios of levels up to Ex=7976 keV, respectively. The Doppler-shift attenuation of y-rays has been measured at E d = 5.5 MeV yielding information on the lifetimes of levels up to Ex=6009keV. The properties of positive-parity levels up to E~ = 5 MeV are successfully reproduced by recent shell-model calculations. The rotational model is also applicable to the description of collective properties without reaching the overall agreement of the shell model. The negative-parity states are well described by the rotational model.

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Spectroscopy of highly excited states in29Si

et al. 1982

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Particle y-ray coincidences have been measured in the 28Si (d, py) reaction at 6.5 and 7 MeV bombarding energy, in the 26Mg (c~, ny) reaction at 12, 14 and 15 MeV, and in the 27A1 (z, py) reaction at 9 MeV. The ;~-decay has been observed for all bound states of 29Si and for 56 unbound states up to 12,960 KeV excitation energy. Particle ?;-ray angular correlations were measured in the 2ssi (d, pT) reaction at 6.5 MeV and in the 26Mg (cg nT) reaction at 12 MeV. Spin (-parity) assignments or restrictions were obtained for nearly all bound states and some high-spin states above the binding energy. The assignment of mirror levels in 29Si and 29p has been extended to 8.2 MeV excitation energy. The excitation energies of 41 positive-parity states are reproduced by shell model calculations. The possible existence of a K~=5/2 + band with prolate deformation is discussed.

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New aspects of the rotational model in25Mg

Cited by 23 publications

References 15 publications

The structure of25Mg

The structure of25Mg

The structure of27Mg from the26Mg(d, p?) reaction

Spectroscopy of highly excited states in29Si

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