New insights into backbending in the symmetry-adapted shell-model framework
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00575100" target="_blank" >RIV/61389005:_____/23:00575100 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevC.108.024304" target="_blank" >https://doi.org/10.1103/PhysRevC.108.024304</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.108.024304" target="_blank" >10.1103/PhysRevC.108.024304</a>
Alternative languages
Result language
angličtina
Original language name
New insights into backbending in the symmetry-adapted shell-model framework
Original language description
We provide insights into the backbending phenomenon within the symmetry-adapted framework which naturally describes the intrinsic deformation of atomic nuclei. For 20Ne, the canonical example of backbending in light nuclei, the ab initio symmetry-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 48Cr, 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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA22-14497S" target="_blank" >GA22-14497S: Advancing the frontiers of first-principle modeling of atomic nuclei</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review C
ISSN
2469-9985
e-ISSN
2469-9993
Volume of the periodical
108
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
024304
UT code for WoS article
001052976700002
EID of the result in the Scopus database
2-s2.0-85167977903