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- Title
Alpha-Like Clustering in $$^{20}$$ Ne from a Quartetting Wave Function Approach.
- Authors
Röpke, G.; Schuck, P.; Xu, C.; Ren, Z.; Lyu, M.; Zhou, B.; Funaki, Y.; Horiuchi, H.; Tohsaki, A.; Yamada, T.
- Abstract
Quartetting ( $$\alpha $$ -like clustering) occurs in low-density matter ( $${\le }0.03$$ fm $$^{-3}$$ ) which exists, e.g., at the surface of nuclei. It is of interest for the $$\alpha $$ preformation to calculate the $$\alpha $$ decay of heavy nuclei such as $$^{212}$$ Po, but also in light nuclei (e.g., $$^{20}$$ Ne) which shows strong signatures of quartetting. We analyze the intrinsic structure of the $$\alpha $$ -like cluster and the center-of-mass motion of the quartet, in particular the role of Pauli blocking. The Thomas-Fermi model for the (daughter) core nucleus is improved introducing quasiparticle nucleon states. Calculations performed for harmonic oscillator basis states show that the effective potential for the quartet center-of-mass motion remains nearly constant within the core nucleus. The relation to the (Tohsaki-Horiuchi-Schuck-Röpke) THSR approach is discussed.
- Subjects
WAVE functions; HARMONIC oscillators; ALPHA decay; PARTICLES (Nuclear physics); QUASIPARTICLES
- Publication
Journal of Low Temperature Physics, 2017, Vol 189, Issue 5/6, p383
- ISSN
0022-2291
- Publication type
Article
- DOI
10.1007/s10909-017-1796-9