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Short-range and tensor correlations in $^{4}$He and $^{8}$Be studied with the antisymmetrized quasi-cluster model

Itagaki, N

Progress of theoretical and experimental physics. Volume 2019:Number 6 (2019) -- Oxford University Press on behalf of the Physical Society of Japan

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  • Title:
    Short-range and tensor correlations in $^{4}$He and $^{8}$Be studied with the antisymmetrized quasi-cluster model
  • Author: Itagaki, N;
    Matsuno, H;
    Kanada-En'yo, Y
  • Found In: Progress of theoretical and experimental physics. Volume 2019:Number 6 (2019)
  • Journal Title: Progress of theoretical and experimental physics
  • Subjects: Mathematical physics--Periodicals; Physics--Periodicals; Dewey: 530.05
  • Rights: legaldeposit
  • Publication Details: Oxford University Press on behalf of the Physical Society of Japan
  • Abstract: Abstract:

    We apply the tensor version of the antisymmetrized quasi-cluster model (AQCM-T) to$^4\textrm{He}$and$^8\textrm{Be}$while focusing on the$NN$correlations in$\alpha$clusters. We adopt the$NN$interactions including realistic ones containing a repulsive core for the central part in addition to the tensor part. In$^4\textrm{He}$, the$pn$pair in the$^3D$channel has been known to play a decisive role in the tensor correlation and the framework is capable of treating not only this channel but also the$NN$correlations in the$^1S$and$^3S$channels. In$^8\textrm{Be}$, when two$\alpha$clusters approach, the$^3D$pair is suppressed because of the Pauli blocking effect, which also induces a decrease in the$^3S$component through the$^3S$$^3D$coupling. These coherent effects result in the reduction of the attractive effect of the central-even interaction in the middle-range region and keep the distance between two$\alpha$clusters.


  • Identifier: System Number: LDEAvdc_100093215209.0x000001; Journal ISSN: 2050-3911; 10.1093/ptep/ptz046
  • Publication Date: 2019
  • Physical Description: Electronic
  • Shelfmark(s): ELD Digital store

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