SU(3)-guided realistic nucleon-nucleon interactions for large-scale calculations

0542665 - ÚJF 2022 RIV US eng J - Journal Article
Sargsyan, G. H. - Launey, K. D. - Baker, R. B. - Dytrych, Tomáš - Draayer, J. P.
SU(3)-guided realistic nucleon-nucleon interactions for large-scale calculations.
Physical Review C. Roč. 103, č. 4 (2021), č. článku 044305. ISSN 2469-9985. E-ISSN 2469-9993
R&D Projects: GA ČR GA16-16772S
Institutional support: RVO:61389005
Keywords : nucleon-nucleon interactions * ab initio calculations * SU(3)
OECD category: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impact factor: 3.199, year: 2021
Method of publishing: Limited access
https://doi.org/10.1103/PhysRevC.103.044305

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 C-12 and related observables, such as excitation energies, electric quadrupole transitions, and rms radii. We find that paring down the interaction by half 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.
Permanent Link: http://hdl.handle.net/11104/0320037