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DOE OSTI · 1979865

Nuclear states projected from a pair condensate

Lu, Yi·Lei, Yang·Johnson, Calvin W.·Shen, Jia Jie
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Abstract

Atomic nuclei exhibit deformation, pairing correlations, and rotational symmetries. To meet these competing demands in a computationally tractable formalism, we revisit the use of general pair condensates with good particle number as a trial wave function for even-even nuclei. After minimizing the energy of the condensate, allowing for general triaxial deformations, we project out states with good angular momentum with a fast projection technique. To show applicability, we present example calculations from pair condensates in several model spaces and compare against angular-momentum projected Hartree-Fock and full configuration-interaction shell-model calculations. This approach successfully generates spherical, vibrational, and rotational spectra, demonstrating potential for modeling medium- to heavy-mass nuclei.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSPhysicscollective levelselectromagnetic transitionsenergy levels & level densitiesnucleon-nucleon interactionsprojective symmetriesvariational approach

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Lu, Yi, Lei, Yang, Johnson, Calvin W., Shen, Jia Jie. 2022-03-17. Nuclear states projected from a pair condensate. https://doi.org/10.1103/physrevc.105.034317

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