Emergent Sp(3,$\mathbb{R}$) Dynamical Symmetry in the Nuclear Many-Body System from an Ab&nbsp;Initio Description

McCoy, Anna E.; Caprio, Mark A.; Dytrych, Tomáš; Fasano, Patrick J.

doi:10.1103/physrevlett.125.102505

Emergent Sp(3,$$\mathbb{R}$$) Dynamical Symmetry in the Nuclear Many-Body System from an Ab Initio Description

Journal Article · Thu Sep 03 00:00:00 EDT 2020 · Physical Review Letters

DOI:https://doi.org/10.1103/physrevlett.125.102505· OSTI ID:1800837

^[1]; ^[2]; Dytrych, Tomáš ^[3]; ^[2]

TRIUMF, Vancouver, BC (Canada); Univ. of Notre Dame, IN (United States); OSTI
Univ. of Notre Dame, IN (United States)
Academy of Sciences of the Czech Republic, Řež (Czech Republic); Louisiana State Univ., Baton Rouge, LA (United States)

Ab initio nuclear theory provides not only a microscopic framework for quantitative description of the nuclear many-body system, but also a foundation for deeper understanding of emergent collective correlations. In this work, a symplectic Sp(3, $$\mathbb{R}$$) $$\supset$$ U(3) dynamical symmetry is identified in ab initio predictions, from a no-core configuration interaction approach, and found to provide a qualitative understanding of the spectrum of ⁷Be. Low-lying states form an Elliott SU(3) spectrum, while an Sp(3, $$\mathbb{R}$$) excitation gives rise to an excited rotational band with strong quadrupole connections to the ground state band.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Notre Dame, IN (United States); Univ. of California, Oakland, CA (United States); Oak Ridge Associated Univ., Oak Ridge, TN (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS); Research Corporation for Science Advancement; National Research Council Canada (NRC)

Grant/Contract Number:: FG02-95ER40934; AC02-05CH11231; AC05-06OR23100

OSTI ID:: 1800837

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 125; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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