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Nuclear Theory·nucl-th

Friday·February 26, 2021

12 papers—2 primary·10 cross-listed

All12Primary2Cross-lists10
  1. 01

    [Submitted on 25 Feb 2021]

    Microscopic calculations of 6He and 6Li with real-time evolution method

    Q. Zhao · B. Zhou · M. Kimura · H. Motoki · Seung-heon Shin

    The low-lying cluster states of 6He (a+n+n) and 6Li (a+n+p) are calculated by the real-time evolution method (REM) which generates basis wave functions for the generator coordinate method (GCM) from the equation of motion of Gaussian wave packets. The 0+ state of 6He as well as the 1+, 0+ and 3+ states of 6Li are calculated as a benchmark. We also calculate the root-mean-square (r.m.s.) radii of the point matter, the point proton, and the point neutron of these states, particularly for the study of the halo characters of these two nuclei. It is shown that REM can be one constructive way for generating effective basis wave functions in GCM calculations.

    Subjects:
    Nuclear Theory (nucl-th)
    arXiv:
    2102.12659 [pdf]
    EPJA(2022)·9 citations
  2. 02

    [Submitted on 25 Feb 2021]

    Role of tensor terms of the Skyrme energy-density functional on neutron deformed magic numbers in the rare-earth region

    Kai-Wen Kelvin-Lee🇲🇾 · Meng-Hock Koh🇲🇾 · Ludovic Bonneau🇫🇷

    The role of the tensor part of the nuclear interaction is actively investigated in recent years due to experimental advancement yielding new data in nuclei far from the -stability line. In this article we study the effect of this part of the nuclear interaction on deformed neutron magic numbers in the rare-earth region within the Skyrme energy-density functional for various TIJ \cite{lesinski:2007} parametrizations. Two quantities signaling magic numbers are considered: two-neutron separation energies and single-particle energies. They are calculated in isotopic series involving well-deformed rare-earth nuclei ranging from to in the region. Obtained results show that, whereas the neutron-proton tensor contribution to binding energies is important to reproduce neutron sub-shell closure at in heavier rare earths Yb () and Hf () isotopes, like-particle tensor also plays a role in the single-particle spectrum around Fermi level and is even favored in lighter Gd () and Dy () rare-earth isotopes.

    Comments:
    10 pages, 4 figures, to be submitted to Phys. Rev. C
    Subjects:
    Nuclear Theory (nucl-th)
    arXiv:
    2102.12986 [pdf]
    PRC(2021)·2 citations

Affiliations

first authorsco-authorsvia INSPIRE