New insights into backbending in the symmetry-adapted shell-model framework
New insights into backbending in the symmetry-adapted shell-model framework
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对对称适应壳模型框架中后弯的新见解
DOI:
10.1103/physrevc.108.024304
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发表时间:
2023
影响因子:
3.1
通讯作者:
Draayer, Jerry P.
中科院分区:
文献类型:
--
作者:
Heller, Nicholas D.;Sargsyan, Grigor H.;Launey, Kristina D.;Johnson, Calvin W.;Dytrych, Tomáš;Draayer, Jerry P.
We provide insights into the backbending phenomenon within the symmetry-adapted framework which naturally describes the intrinsic deformation of atomic nuclei. For, the canonical example of backbending in light nuclei, theab initiosymmetry-adapted no-core shell model shows that while the energy spectrum replicates the backbending from experimental energies under the rotor-model assumption, there is no change in the intrinsic deformation or intrinsic spin of the yrast band around the backbend. For the traditional example of, computed in the valence shell with empirical interactions, we confirm a high-spin nucleus that is effectively near-spherical, in agreement with previous models. However, we find that this spherical distribution results, on average, from an almost equal mixing of deformed prolate shapes with deformed oblate shapes. Microscopic calculations confirm the importance of spin alignment and configuration mixing, but surprisingly unveil no anomalous increase in moment of inertia. This finding opens the path toward further understanding the rotational behavior and moment of inertia of medium-mass nuclei.
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DOI:
--
发表时间:
1978
期刊:
影响因子:
--
作者:
D. Millener
通讯作者:
D. Millener
影响因子:
1.3
作者:
K. Hecht;Y. Suzuki
通讯作者:
Y. Suzuki
DOI:
10.1016/0375-9474(86)90308-8
发表时间:
1986
期刊:
Nuclear Physics
影响因子:
--
作者:
J. Carvalho;R. L. Blanc;M. Vassanji;D. Rowe;J. B. McGrory
通讯作者:
J. B. McGrory
影响因子:
6.3
作者:
Y. Akiyama;J. Draayer
通讯作者:
Y. Akiyama;J. Draayer
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
S. El;H. Alharbi;H. Alhendi
通讯作者:
H. Alhendi