Landscape of nuclear deformation softness with spherical quasiparticle random-phase approximation

Le Anh, Nguyen; Loc, Bui Minh; Papakonstantinou, Panagiota; Auerbach, Naftali

doi:10.1103/physrevc.109.024313

Landscape of nuclear deformation softness with spherical quasiparticle random-phase approximation

Journal Article · Mon Feb 12 00:00:00 EST 2024 · Physical Review. C

DOI:https://doi.org/10.1103/physrevc.109.024313· OSTI ID:2298947

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Ho Chi Minh City University of Education (Vietnam); University of Science, Ho Chi Minh City (Vietnam); Vietnam National University, Ho Chi Minh City (Vietnam); San Diego State University
Institute for Basic Science (IBS), Daejeon (Korea); San Diego State University, CA (United States)
Institute for Basic Science, Daejeon (Korea)
Tel Aviv University (Israel)

We investigate the stability and softness of nuclei against quadrupole, octupole, and hexadecapole deformation. By applying the spherical Skyrme-force Hartree-Fock Bardeen-Cooper-Schrieffer quasiparticle random phase approximation, we diagnose ground-state deformation when imaginary solutions are obtained, i.e., the spherical ground state collapses. We also calculate the multipole polarizability in spherical nuclei with no collapse, as a measure of softness. This numerically light and theoretically sound method is found able to capture deformation patterns across the nuclide chart. As a result, the connection between the intrinsic shape of nuclei and the dynamics of their low-lying collective states is established and the role of shell structure is discussed.

View Accepted Manuscript (DOE)

Research Organization:: San Diego State Univ., CA (United States); San Diego State University, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0004075

OSTI ID:: 2298947

Alternate ID(s):: OSTI ID: 2473546
OSTI ID: 2570441

Journal Information:: Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 109; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Landscape of nuclear deformation softness with spherical quasiparticle random-phase approximation

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