論文

査読有り
2017年9月

Neutron-skin thickness determines the surface tension of a compressible nuclear droplet

PHYSICAL REVIEW C
  • W. Horiuchi
  • ,
  • S. Ebata
  • ,
  • K. Iida

96
3
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevC.96.035804
出版者・発行元
AMER PHYSICAL SOC

We systematically investigate the neutron-skin thickness of neutron-rich nuclei within a compressible droplet model, which includes several parameters characterizing the surface tension and the equation of state (EOS) of asymmetric nuclear matter as well as corrections due to the surface diffuseness. Such a systematic analysis helps towards constraining the EOS parameters of asymmetric nuclear matter and the poorly known density dependence of the surface tension; the latter is estimated with help of available experimental data for the neutron and proton density distributions and the nuclear masses. Validity of the present approach is confirmed by calculating realistic density distributions of Ca, Ni, Zr, Sn, Yb, and Pb isotopes within a microscopic Skyrme-Hartree-Fock+BCS method for various sets of the effective nuclear force. Our macroscopic model accompanied by the diffuseness corrections works well in the sense that it well reproduces the evolution of the microscopically deduced neutron-skin thickness with respect to the neutron number for selected sets of the effective nuclear force. We find that the surface tension of the compressible nuclear droplet is a key to bridging a gap between microscopic and macroscopic approaches.

Web of Science ® 被引用回数 : 9

リンク情報
DOI
https://doi.org/10.1103/PhysRevC.96.035804
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000411455500005&DestApp=WOS_CPL

エクスポート
BibTeX RIS