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Halo phenomena in deformed nuclei are investigated within a deformed relativistic Hartree Bogoliubov (DRHB) theory. These weakly bound quantum systems present interesting examples for the study of the interdependence between the deformation…

Nuclear Theory · Physics 2014-11-20 Shan-Gui Zhou , Jie Meng , P. Ring , En-Guang Zhao

A deformed relativistic Hartree-Bogoliubov theory in continuum has been developed for the study of neutron halos in deformed nuclei and the halo phenomenon in deformed weakly bound nuclei is investigated. Magnesium and neon isotopes are…

Nuclear Theory · Physics 2013-05-16 Lulu Li , Jie Meng , P. Ring , En-Guang Zhao , Shan-Gui Zhou

In this contribution we present some recent results about neutron halos in deformed nuclei. A deformed relativistic Hartree-Bogoliubov theory in continuum has been developed and the halo phenomenon in deformed weakly bound nuclei is…

Nuclear Theory · Physics 2012-11-07 Lulu Li , Jie Meng , P. Ring , En-Guang Zhao , Shan-Gui Zhou

Halo phenomenon in deformed nuclei is studied by using a fully self-consistent deformed relativistic Hartree-Bogoliubov model in a spherical Woods-Saxon basis with the proper asymptotic behavior at large distance from the nuclear center.…

Nuclear Theory · Physics 2015-03-17 Shan-Gui Zhou , Jie Meng , P. Ring , En-Guang Zhao

We study the exotic deformed nucleus $^{31}$Ne using an approach that combines self-consistent structure and reaction theory. We utilize the fully-relativistic, microscopic deformed Hartree-Bogoliubov theory in continuum (DRHBc) to…

Nuclear Theory · Physics 2021-09-09 Shi-Yi Zhong , Shi-Sheng Zhang , Xiang-Xiang Sun , Michael S. Smith

Halo phenomena have long been an important frontier in both experimental and theoretical nuclear physics. $^{37}$Mg was identified as a halo nucleus in 2014 and remains the heaviest nuclear halo system to date. While the halo phenomenon in…

Nuclear Theory · Physics 2023-08-10 K. Y. Zhang , S. Q. Yang , J. L. An , S. S. Zhang , P. Papakonstantinou , M. -H. Mun , Y. Kim , H. Yan

In this contribution to the Halo-40 Proceedings, we discuss two topics regarding halo phenomena: The first is the pairing anti-halo effect on the neutron radius of halo nuclei and its restoration due to the coupling to the continuum; the…

Nuclear Theory · Physics 2026-04-02 Hiroyuki Sagawa , Xiao Lu , Shan-Gui Zhou

A deformed relativistic Hartree Bogoliubov (RHB) theory in continuum is developed aiming at a proper description of exotic nuclei, particularly those with a large spatial extension. In order to give an adequate consideration of both the…

Nuclear Theory · Physics 2012-02-23 Lulu Li , Jie Meng , P. Ring , En-Guang Zhao , Shan-Gui Zhou

The year 2025 marks the 40th anniversary of the discovery of halo nuclei and the 15th anniversary of the development of the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc). In this work, we present the first DRHBc…

Nuclear Theory · Physics 2025-10-14 K. Y. Zhang , X. X. Lu

Deformation properties of weakly bound nuclei are discussed in the deformed single-particle model. It is demonstrated that in the limit of a very small binding energy the valence particles in specific orbitals, characterized by a very small…

Nuclear Theory · Physics 2009-10-30 T. Misu , W. Nazarewicz , S. Aberg

Possible deformed neutron halos in silicon isotopes are investigated from both structure and reaction perspectives using the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) combined with the Glauber model. The…

Nuclear Theory · Physics 2026-04-03 C. Pan , J. L. An , P. Ring , X. H. Wu , P. Papakonstantinou , M. -H. Mun , Y. Kim , S. S. Zhang , K. Y. Zhang

A microscopic self-consistent triaxial relativistic Hartree-Bogoliubov theory in continuum (TRHBc), which simultaneously takes into account the triaxiality and pairing correlations as well as continuum effects, is established and applied to…

Nuclear Theory · Physics 2022-12-13 K. Y. Zhang , S. Q. Zhang , J. Meng

We study deformed neutron halo nuclei in the mass region $40 < A < 90$ and their soft electric dipole ($E1$) excitations based on the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc). Three candidates, $^{43}$Si,…

Nuclear Theory · Physics 2026-05-20 Xiao Lu , Cong Pan , Hiroyuki Sagawa , Xiang-Xiang Sun , Shan-Gui Zhou

Although the neutron (n) does not carry a total electric charge, its charge and magnetization distributions represented in momentum space by the electromagnetic form factors, $F_1^{(n)} (q^2)$ and $F_2^{(n)} (q^2)$, lead to an…

Nuclear Theory · Physics 2008-11-26 M. Nowakowski , N. G. Kelkar , T. Mart

A triaxial relativistic Hartree-Bogoliubov theory in continuum (TRHBc) has been developed to incorporate triaxial deformation, pairing correlations, and continuum effects in a fully microscopic and self-consistent way, aiming for a reliable…

Nuclear Theory · Physics 2025-09-30 Kaiyuan Zhang , Shuangquan Zhang , Jie Meng

Particles in the classically forbidden regions are studied based on the deformed relativistic Hartree-Bogoliubov theory in continuum with PC-PK1 for magnesium isotopes. By analyzing the neutron and proton radii, it is found that the largest…

Nuclear Theory · Physics 2019-09-18 Kaiyuan Zhang , Dongyang Wang , Shuangquan Zhang

We explore the rotational feature of deformed halos by performing the angular momentum projection (AMP) on the ground state wave functions obtained from the deformed relativistic Hartree-Bogoliubov theory (DRHBc) in continuum. The DRHBc+AMP…

Nuclear Theory · Physics 2021-10-15 Xiang-Xiang Sun , Shan-Gui Zhou

Halos and changes of nuclear magicities have been extensively investigated in exotic nuclei during past decades. The newly discovered $^{39}$Na with the neutron number $N=28$ provides a new platform to explore such novel phenomena near the…

Nuclear Theory · Physics 2023-05-10 K. Y. Zhang , P. Papakonstantinou , M. -H. Mun , Y. Kim , H. Yan , X. -X. Sun

We present a systematic study of halo characteristics in the neutron-rich isotopes 28-32Ne within the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc). Microscopic density distributions are analyzed in coordinate space,…

Nuclear Theory · Physics 2026-04-07 Heesung Kwon , Kyoungsu Heo , Seonghyun Kim , Eunja Ha , Myung-Ki Cheoun

It is known that nuclear deformation plays an important role in inducing the halo structure in neutron-rich nuclei by mixing several angular momentum components. While previous theoretical studies on this problem in the literature assume…

Nuclear Theory · Physics 2021-08-04 K. Uzawa , K. Hagino , K. Yoshida
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