Bound state M1 transitions in sd-shell nuclei

Berg, U.E.P.; Ackermann, K.; Bangert, K.; Bläsing, C.; Naatz, W.; Stock, R.; Wienhard, K.; Brussel, M.K.; Chapuran, T.E.; Wildenthal, B. H.

doi:10.1016/0370-2693(84)90918-3

Cited by 53 publications

(10 citation statements)

References 11 publications

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“…The ground-state-transition width is lower than that reported by Ref. [19] but agrees well with the more recent value of Ref. [18].…”

Section: Discussionsupporting

confidence: 52%

“…The state at E x = 106 47 keV has been seen in two bremsstrahlung experiments [18,19]. Because of the amount of background in these experiments only the strong ground-statetransition was observed.…”

Section: Discussionmentioning

confidence: 93%

“…These measurements have been unable to access the astrophysical energy region because of the relatively high α penetrability through the Coulomb barrier as well as unwanted background from cosmic rays and beam induced reactions. Therefore several indirect experiments have been conducted to study the compound nucleus of interest 26 Mg [16][17][18][19][20][21][22][23][24][25]. Most of these experiments have only yielded energy information for states, leaving partial decay widths and spin-parities largely unknown.…”

Section: Introductionmentioning

confidence: 99%

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Photoexcitation of astrophysically important states inMg26. II. Ground-state-transition partial widths

et al. 2010

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The level structure of 26 Mg near the neutron-separation energy, which is of interest for s-process nucleosynthesis, was studied at the High Intensity Gamma-Ray Source of the Triangle Universities Nuclear Laboratory using the method of nuclear resonance fluorescence. A nearly monoenergetic and linearly polarized γ -ray beam was used to scan the excitation energy range from 10.5 to 11.7 MeV. For the five states observed, the total widths and partial widths are determined. Precise measurement of these widths is necessary for the prediction of neutron production for the s-process.

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“…The ground-state-transition width is lower than that reported by Ref. [19] but agrees well with the more recent value of Ref. [18].…”

Section: Discussionsupporting

confidence: 52%

Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Photoexcitation of astrophysically important states inMg26. II. Ground-state-transition partial widths

et al. 2010

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“…For sd shell nuclei, the role of collective motion is insignificant; therefore, the M 1 resonance clearly manifests itself in these nuclei. To date, the position and fine structure of the magnetic dipole resonance (MDR) in eveneven (4N and 4N + 2n) sd shell nuclei have been sufficiently well studied [3,4]. It has also been established that the main mechanism responsible for the MDR excitation is the transitions between spinorbit partners [2].…”

Section: Introductionmentioning

confidence: 99%

“…It has also been established that the main mechanism responsible for the MDR excitation is the transitions between spinorbit partners [2]. To explain the reduction in the total strength and MDR fragmentation in these nuclei, the Nilsson model [4], the configuration-mixing shell model [3], and the Hartree-Fock method [5] were successfully used. Consideration of the effect of pairing correlations on the position and energyweighted strength of giant multipole resonances leads to more complete agreement between the predictions of different theoretical models and experimental data [6,7].…”

Section: Introductionmentioning

confidence: 99%