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- W2591796145 abstract "A beyond-mean-field approach consisting of angular momentum projection techniques and generator coordinate method based on Skyrme--Hartree-Fock calculations is employed to investigate single- and double-$mathrm{ensuremath{Lambda}}$ hypernuclear systems. The density-dependent $Nmathrm{ensuremath{Lambda}}$ interactions derived from the Nijmegen soft-core potentials are used. Rotational energy spectra and electric-quadrupole transition strengths $B(E2)$ of the hypernuclei $_{mathrm{ensuremath{Lambda}}}^{13}mathrm{C},_{mathrm{ensuremath{Lambda}}mathrm{ensuremath{Lambda}}}^{14}mathrm{C},_{mathrm{ensuremath{Lambda}}}^{21}mathrm{Ne}$, and $_{mathrm{ensuremath{Lambda}}mathrm{ensuremath{Lambda}}}^{22}mathrm{Ne}$ are presented and compared with those of the corresponding core nuclei $^{12}mathrm{C}$ and $^{20}mathrm{Ne}$. The shrinkage effect of the $mathrm{ensuremath{Lambda}}mathrm{s}$ is demonstrated by the $B(E2)$ values, the charge radii, and the shape deformation $ensuremath{beta}$ of the nuclear core. It is found that the reduction of the $B(E2)$ values in $_{phantom{rule{4pt}{0ex}}phantom{rule{0.16em}{0ex}}mathrm{ensuremath{Lambda}}}^{13}mathrm{C}$ and $_{mathrm{ensuremath{Lambda}}mathrm{ensuremath{Lambda}}}^{14}mathrm{C}$ is mainly caused by the shrinkage of the charge radii of the nuclear cores, while the reduced shape deformations also play important roles; but the contrary is the case in $_{phantom{rule{4pt}{0ex}}mathrm{ensuremath{Lambda}}}^{21}mathrm{Ne}$ and $_{mathrm{ensuremath{Lambda}}mathrm{ensuremath{Lambda}}}^{22}mathrm{Ne}$. Comparison between this and other theoretical models are made, and the differences between them are illuminated." @default.
- W2591796145 created "2017-03-16" @default.
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- W2591796145 date "2017-02-27" @default.
- W2591796145 modified "2023-10-18" @default.
- W2591796145 title "Investigation of single- and double-<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mi mathvariant=normal>Λ</mml:mi></mml:math>hypernuclei using a beyond-mean-field approach" @default.
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- W2591796145 doi "https://doi.org/10.1103/physrevc.95.024323" @default.
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