Possible bound nuclei beyond the two-neutron drip line in the 
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 region

Pan, Chun‐Shui; Zhang, K. Y.; Chong, Pooi Seong; Heo, Chan; Ho, Meng Chit; Lee, J.; Li, Zhi-Pan; Sun, Wei; Tam, Chi Kin; Wong, Sau Hei; Yeung, Ryan Wai-Yen; Yiu, To Chung; Zhang, S. Q.

doi:10.1103/physrevc.104.024331

Cited by 38 publications

(14 citation statements)

References 69 publications

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“…Additionally, we would like to mention that the calculations performed in this study can also be performed using the deformation relativistic Hartree-Bogoliubov (DRHBc) theory [78][79][80][81][82][83][84], in which the scalar potential and densities are expanded in terms of the Legendre polynomials, though the DRHBc theory is much more time consuming than the MDC-RMF model. Very recently, the influence of higher-order deformations on possible bound nuclei beyond the drip line has also been investigated in the transfermium region from No ( ) to Ds ( ) using the DRHBc theory [85], and the development of a nuclear mass table using the DRHBc theory is in progress [86][87][88][89].…”

Section: Resultsmentioning

confidence: 99%

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around ²⁷⁰Hs *

2022

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We study the effects of higher-order deformations βλ (λ = 4,6,8, and 10) on the ground state properties of superheavy nuclei (SHN) near the deformed doubly magic nucleus 270Hs by using the multidimensionally-constrained (MDC) relativistic mean-field (RMF) model with five effective interactions PC-PK1, PK1, NL3∗, DD-ME2, and PKDD. The doubly magic properties of 270Hs are featured by the large energy gaps at N = 162 and Z = 108 in the single-particle spectra. By investigating the binding energies and single-particle levels of270Hs in multidimensional deformation space, we find that the deformation β6 has the greatest impact on the binding energy among these higher-order deformations and influences the shell gaps considerably. Similar conclusions hold for other SHN near 270Hs. Our calculations demonstrate that the deformation β6 must be considered when studying SHN by using MDC-RMF.

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Section: Resultsmentioning

confidence: 99%

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around ²⁷⁰Hs *

2022

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“…In addition, we would like to mention that the calculations performed in this work can also be done with the deformation relativistic Hartree-Bogoliubov (DRHBc) theory [78][79][80][81][82][83][84], in which the scalar potential and densities are expanded in terms of the Legendre polynomials but the time consuming of the DRHBc theory is much heavier than that for MDC-RMF. Very recently, the influence of higher-order deformation on possible bound nuclei beyond the drip line has been investigated in the transfermium region from No (Z = 102) to Ds (Z = 110) by using the DRHBc theory [85] and a nuclear mass table with the DRHBc theory is in progress [86][87][88][89].…”

Section: Discussionmentioning

confidence: 99%

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around $^{270}$Hs

Wang,

Sun,

Zhou

2021

Preprint

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We study the effects of higher-order deformations β λ (λ = 4, 6, 8, and 10) on the ground state properties of superheavy nuclei (SHN) near the doubly magic deformed nucleus 270 Hs by using the multidimensionally-constrained (MDC) relativistic mean-field (RMF) model with five effective interactions PC-PK1, PK1, NL3 * , DD-ME2, and PKDD. The doubly magic properties of 270 Hs are featured by the large energy gaps at N = 162 and Z = 108 in the single-particle spectra. By investigating the binding energies and single-particle levels of 270 Hs in multidimensional deformation space, we find that the deformation β6 has the greatest impact on the binding energy among these higher-order deformations and influences the shell gaps considerably. Similar conclusions hold for other SHN near 270 Hs. Our calculations demonstrate that the deformation β6 must be considered when studying SHN by using MDC-RMF.

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“…The DRHBc theory used in this work has been successfully applied to various interesting phenomena of exotic nuclei; e.g., neutron drip line change with axial deformation [37], the shape decoupling effect which produces different shapes of core and halo [38][39][40], and the existence of bound nuclei beyond neutron drip line [41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Bubble nuclei with shape coexistence in even-even isotopes of Hf to Hg

Choi,

Lee,

Mun

et al. 2022

Preprint

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The shape of a nucleus is one of fundamental nuclear properties. We perform a systematic investigation of bubble nuclei that also exhibit shape coexistence in Hf, W, Os, Pt and Hg even-even isotopes using the deformed relativistic Hartree-Bogoliubov theory in continuum. For a systematic study, we first consider nuclear bubble structures and shape coexistence separately. We confirm that deformations and pairing correlations hinder bubble structures by comparing our results with those from relativistic continuum Hartree-Bogoliubov theory that assumes spherical symmetry in nuclei. We then predict candidate isotopes with both bubble structure and shape coexistence. We observe that the depletion fraction factor that characterizes bubble structure is mostly smaller in oblate deformation than in prolate, while some isotopes such as 206 Os have bubble structures both in oblate and prolate deformations. We compare the proton single-particle energy levels for the candidates of shape coexistence both with only prolate bubble structure and with prolate and oblate bubble structures.

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Possible bound nuclei beyond the two-neutron drip line in the 50≤Z≤70 region

Cited by 38 publications

References 69 publications

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around ²⁷⁰Hs *

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around ²⁷⁰Hs *

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around $^{270}$Hs

Bubble nuclei with shape coexistence in even-even isotopes of Hf to Hg

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Possible bound nuclei beyond the two-neutron drip line in the 50≤Z≤70 region

Cited by 38 publications

References 69 publications

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around 270Hs *

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around 270Hs *

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around $^{270}$Hs

Bubble nuclei with shape coexistence in even-even isotopes of Hf to Hg

Contact Info

Product

Resources

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Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around ²⁷⁰Hs *

Microscopic study of higher-order deformation effects on the ground states of superheavy nuclei around ²⁷⁰Hs *