Emergent symplectic symmetry in atomic nuclei: Ab initio symmetry-adapted no-core shell model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00534287" target="_blank" >RIV/61389005:_____/20:00534287 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1140/epjst/e2020-000178-3" target="_blank" >https://doi.org/10.1140/epjst/e2020-000178-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjst/e2020-000178-3" target="_blank" >10.1140/epjst/e2020-000178-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Emergent symplectic symmetry in atomic nuclei: Ab initio symmetry-adapted no-core shell model

Popis výsledku v původním jazyce

Exact symmetry and symmetry-breaking phenomena play a key role in gaining a better understanding of the physics of many-particle systems, from quarks and atomic nuclei, through molecules and galaxies. In nuclei, exact and dominant symmetries such as rotational invariance, parity, and charge independence have been clearly established. Beyond such symmetries, the nature of nuclear dynamics appears to exhibit a high degree of complexity, and only now, we show the fundamental role of an emergent approximate symmetry in nuclei, the symplectic Sp(3,Double-struck capital R) symmetry, as clearly unveiled fromab initiostudies that start from realistic interactions. In this article, we detail and enhance our recent findings presented in [T. Dytrych, K.D. Launey, J.P. Draayer, D.J. Rowe, J.L. Wood, G. Rosensteel, C. Bahri, D. Langr, R.B. Baker, Phys. Rev. Lett.124, 042501 (2020)], that establish Sp(3,Double-struck capital R) as a remarkably good symmetry of the strong interaction, and point to the predominance of a few equilibrium nuclear shapes (deformed or not) with associated vibrations and rotations that preserve the symplectic Sp(3,Double-struck capital R) symmetry. Specifically, we find that the structure of nuclei below the calcium region in their ground state, as well as in their low-lying excited states and giant resonances, respects this symmetry at the 60-80% level.

Název v anglickém jazyce

Emergent symplectic symmetry in atomic nuclei: Ab initio symmetry-adapted no-core shell model

Popis výsledku anglicky

Exact symmetry and symmetry-breaking phenomena play a key role in gaining a better understanding of the physics of many-particle systems, from quarks and atomic nuclei, through molecules and galaxies. In nuclei, exact and dominant symmetries such as rotational invariance, parity, and charge independence have been clearly established. Beyond such symmetries, the nature of nuclear dynamics appears to exhibit a high degree of complexity, and only now, we show the fundamental role of an emergent approximate symmetry in nuclei, the symplectic Sp(3,Double-struck capital R) symmetry, as clearly unveiled fromab initiostudies that start from realistic interactions. In this article, we detail and enhance our recent findings presented in [T. Dytrych, K.D. Launey, J.P. Draayer, D.J. Rowe, J.L. Wood, G. Rosensteel, C. Bahri, D. Langr, R.B. Baker, Phys. Rev. Lett.124, 042501 (2020)], that establish Sp(3,Double-struck capital R) as a remarkably good symmetry of the strong interaction, and point to the predominance of a few equilibrium nuclear shapes (deformed or not) with associated vibrations and rotations that preserve the symplectic Sp(3,Double-struck capital R) symmetry. Specifically, we find that the structure of nuclei below the calcium region in their ground state, as well as in their low-lying excited states and giant resonances, respects this symmetry at the 60-80% level.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/GA16-16772S" target="_blank" >GA16-16772S: Vývoj symetriemi-řízených metod pro modelování středně těžkých atomových jader z prvních principů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

The European Physical Journal Special Topics

ISSN

1951-6355

e-ISSN

—

Svazek periodika

229

Číslo periodika v rámci svazku

14-15

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

2429-2441

Kód UT WoS článku

000579800800006

EID výsledku v databázi Scopus

2-s2.0-85093103391