Symmetry-adapted no-core shell model applications for light nuclei with QCD-inspired interactions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21240%2F12%3A00193355" target="_blank" >RIV/68407700:21240/12:00193355 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ppnp.2012.01.020" target="_blank" >http://dx.doi.org/10.1016/j.ppnp.2012.01.020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ppnp.2012.01.020" target="_blank" >10.1016/j.ppnp.2012.01.020</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Symmetry-adapted no-core shell model applications for light nuclei with QCD-inspired interactions

Popis výsledku v původním jazyce

We use powerful computational and group-theoretical algorithms to perform ab initio CI (configuration-interaction) calculations in a model space spanned by SU(3) symmetry-adapted many-body configurations with the JISP16 nucleon-nucleon interaction. We demonstrate that the results for the ground states of light nuclei up through A=16 exhibit a strong dominance of low-spin and high-deformation configurations together with an evident symplectic structure. We also find states among the lowest-lying 0+ eigenstates of 12C and 16O that are clearly dominated by ?-clustering correlations. Our findings imply that only a small fraction of the full model space is needed to model nuclear collective dynamics, including deformations and ?-particle clustering, even ifone uses modern realistic interactions that do not preserve SU(3) symmetry. This, in turn, points to the importance of using a symmetry-adapted CI framework, one based on an LS coupling scheme with the associated spatial configurations o

Název v anglickém jazyce

Symmetry-adapted no-core shell model applications for light nuclei with QCD-inspired interactions

Popis výsledku anglicky

We use powerful computational and group-theoretical algorithms to perform ab initio CI (configuration-interaction) calculations in a model space spanned by SU(3) symmetry-adapted many-body configurations with the JISP16 nucleon-nucleon interaction. We demonstrate that the results for the ground states of light nuclei up through A=16 exhibit a strong dominance of low-spin and high-deformation configurations together with an evident symplectic structure. We also find states among the lowest-lying 0+ eigenstates of 12C and 16O that are clearly dominated by ?-clustering correlations. Our findings imply that only a small fraction of the full model space is needed to model nuclear collective dynamics, including deformations and ?-particle clustering, even ifone uses modern realistic interactions that do not preserve SU(3) symmetry. This, in turn, points to the importance of using a symmetry-adapted CI framework, one based on an LS coupling scheme with the associated spatial configurations o

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Progress in Particle and Nuclear Physics

ISSN

0146-6410

e-ISSN

—

Svazek periodika

67

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

516-520

Kód UT WoS článku

000303282200070

EID výsledku v databázi Scopus

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