論文

2017年12月1日

Alpha-Like Clustering in20Ne from a Quartetting Wave Function Approach

Journal of Low Temperature Physics
  • G. Röpke
  • ,
  • P. Schuck
  • ,
  • C. Xu
  • ,
  • Z. Ren
  • ,
  • M. Lyu
  • ,
  • B. Zhou
  • ,
  • Y. Funaki
  • ,
  • H. Horiuchi
  • ,
  • A. Tohsaki
  • ,
  • T. Yamada

189
開始ページ
383
終了ページ
409
DOI
10.1007/s10909-017-1796-9

© 2017, Springer Science+Business Media, LLC. Quartetting (α-like clustering) occurs in low-density matter (≤ 0.03 fm- 3) which exists, e.g., at the surface of nuclei. It is of interest for the α preformation to calculate the α decay of heavy nuclei such as212Po, but also in light nuclei (e.g.,20Ne) which shows strong signatures of quartetting. We analyze the intrinsic structure of the α-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.

リンク情報
DOI
https://doi.org/10.1007/s10909-017-1796-9
Scopus
https://www.scopus.com/record/display.uri?eid=2-s2.0-85024487577&origin=inward
URL
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85024487577&origin=inward