Ab initio No-core Shell Model Calculations in a SU(3)-based Coupling Scheme

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21240%2F12%3A00194946" target="_blank" >RIV/68407700:21240/12:00194946 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/1742-6596/387/1/012016" target="_blank" >http://iopscience.iop.org/1742-6596/387/1/012016</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/387/1/012016" target="_blank" >10.1088/1742-6596/387/1/012016</a>

Result language
angličtina
Original language name
Ab initio No-core Shell Model Calculations in a SU(3)-based Coupling Scheme
Original language description
We use powerful algorithms of computational group theory to perform ab initio configuration-interaction calculations in a SU(3)-based symmetry-adapted many-particle basis. We demonstrate that eigenfunctions for the low-lying states of 6Li, 8Be, 12C, and16O exhibit a strong dominance of low proton, neutron, and total intrinsic spins that carry the same spatial deformation as the leading symplectic Sp(3,R) irreducible representations. Our findings imply that only a small fraction of the complete model space is needed to model nuclear collective dynamics, deformation, and ff-particle clustering even if one uses modern realistic interactions that do not preserve SU(3) symmetry. This in turn points to the importance of using a symmetry-adapted framework, one based on a LS coupling scheme with the associated spatial configurations organized according to deformation.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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