SU(3)-guided realistic nucleon-nucleon interactions for large-scale calculations
| Autor: | Jerry P. Draayer, Tomas Dytrych, Grigor Sargsyan, R. B. Baker, Kristina D. Launey |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Similarity (geometry) Nuclear Theory 010308 nuclear & particles physics FOS: Physical sciences Scale (descriptive set theory) Observable 01 natural sciences 3. Good health Nuclear Theory (nucl-th) Ab initio quantum chemistry methods Pairing Quantum mechanics 0103 physical sciences Quadrupole 010306 general physics Nucleon Excitation |
| Zdroj: | Physical Review C. 103 |
| ISSN: | 2469-9993 2469-9985 |
| DOI: | 10.1103/physrevc.103.044305 |
| Popis: | We examine nucleon-nucleon realistic interactions, based on their SU(3) decomposition to SU(3)-symmetric components. We find that many of these interaction components are negligible, which, in turn, allows us to identify a subset of physically relevant components that are sufficient to describe the structure of low-lying states in $^{12}$C and related observables, such as excitation energies, electric quadrupole transitions and rms radii. We find that paring the interaction down to half of the SU(3)-symmetric components or more yields results that practically coincide with the corresponding ab initio calculations with the full interaction. In addition, we show that while various realistic interactions differ in their SU(3) decomposition, their renormalized effective counterparts exhibit a striking similarity and composition that can be linked to dominant nuclear features such as deformation, pairing, clustering, and spin-orbit effect. 9 pages, 7 figures |
| Databáze: | OpenAIRE |
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