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相关论文: Cluster correlation and nuclear vorticity in low-l…

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We investigated cluster and toroidal aspects of isoscalar dipole excitations in $^{12}$C based on the shifted basis antisymmetrized molecular dynamics combined with the generator coordinate method, which can describes 1p-1h excitations and…

核理论 · 物理学 2018-01-10 Yoshiko Kanada-En'yo , Yuki Shikata , Horiyuki Morita

Low-energy dipole (LED) excitations in $^{20}$O were investigated by variation after $K$-projection of deformation($\beta$)-constraint antisymmetrized molecular dynamics combined with the generator coordinate method. We obtained two LED…

核理论 · 物理学 2021-09-22 Yuki Shikata , Yoshiko Kanada-En'yo

We studied dipole excitations in $^{10}$Be based on an extended version of the antisymmetrized molecular dynamics, which can describe 1p-1h excitations and large amplitude cluster modes. Toroidal and compressive dipole operators are found…

核理论 · 物理学 2017-06-28 Yoshiko Kanada-En'yo , Yuki Shikata

Low-energy dipole excitations in ${}^{10}$Be were investigated based on the generator coordinate method with $\alpha + {}^6$He and $\alpha + \alpha + 2n$ cluster models. We obtained three $1^-$ states in $E_{x} < 15$~MeV, which show…

核理论 · 物理学 2019-03-01 Yuki Shikata , Yoshiko Kanada-En'yo , Hiroyuki Morita

On the basis of an extended antisymmetrized molecular dynamics calculation, we study the cluster structure and the of the 0+ and 1- states of 18O. We discuss that several different kinds of cluster states appear in the excitation spectrum,…

核理论 · 物理学 2020-08-19 T. Baba , M. Kimura

Low-energy dipole (LED) excitations in $^{18}$O were investigated using a combination of the variation after $K$-projection in the framework of antisymmetrized molecular dynamics with $\beta$-constraint with the generator coordinate method.…

核理论 · 物理学 2021-03-24 Yuki Shikata , Yoshiko Kanada-En'yo

The nuclear-matter liquid-gas phase transition induces instabilities against finite-size density fluctuations. This has implications for both heavy-ion-collision and compact-star physics. In this paper, we study the clusterization…

核理论 · 物理学 2008-11-26 C. Ducoin , J. Margueron , Ph. Chomaz

The chiral soliton lattice is an array of topological solitons realized as ground states of QCD at finite density under strong magnetic fields or rapid rotation, and chiral magnets with an easy-plane anisotropy. In such cases, topological…

高能物理 - 理论 · 物理学 2022-09-28 Minoru Eto , Muneto Nitta

The low-energy dipole excitations in $^{24}$Mg are investigated within the Skyrme quasiparticle random-phase-approximation (QRPA) for axial nuclei. The calculations with the force SLy6 reveal a remarkable feature: the lowest $I^{\pi}K=1^-1$…

核理论 · 物理学 2018-05-09 V. O. Nesterenko , A. Repko , J. Kvasil , P. -G. Reinhard

Among the states of $^{12}$C, there is an important subset of $K$=0 and $K$=$I$ planar intrinsic states in which the intrinsic motion of the nucleons are confined in the planar region defined by the three-alpha cluster or by their generated…

核理论 · 物理学 2020-01-01 Cheuk-Yin Wong

Nuclei in the $sd$-shell demonstrate a remarkable interplay of cluster and mean-field phenomena. The $N=Z$ nuclei, such as $^{24}$Mg and $^{28}$Si, have been the focus of the theoretical study of both these phenomena in the past. The…

It is theoretically and experimentally argued that there may exist bubble or toroid-shaped configurations in some nucleus systems. Based on the nuclear transport model, it is shown that compared with the collision of normal nuclei, there is…

核理论 · 物理学 2016-05-25 Gao-Chan Yong

We point out an intriguing possibility that there exist topological soliton-like excitations in nuclei with $\alpha$ cluster condensation. The excitations are vortices in superfluid, a property possessed by such Bose condensed nuclei. We…

核理论 · 物理学 2009-11-07 Aiichi Iwazaki

The existence of individual low-energy E1 toroidal and compression states (TS and CS) in $^{24}$Mg was predicted recently in the framework of quasiparticle random-phase-approximation (QRPA) model with Skyrme forces. It was shown that the…

核理论 · 物理学 2021-03-03 V. O. Nesterenko , J. Kvasil , A. Repko , P. -G. Reinhard

Atomic nuclei can exhibit shape coexistence and multi-reference physics that enters in their ground states, and to accurately capture the ensuing correlations and entanglement is challenging. We address this problem by applying…

核理论 · 物理学 2024-02-16 Z. H. Sun , G. Hagen , T. Papenbrock

The understanding of clustering aspects at the ground state of nuclei and in fast rotating ones within the framework of covariant density functional theory has been reviewed and reanalyzed. The appearance of many exotic nuclear shapes in…

核理论 · 物理学 2025-01-09 A. V. Afanasjev

The open quantum system eigenstate in the vicinity of low-energy decay channel may mimic its features, in particular the characteristic clustering properties of the decay channel. This generic mechanism of clusterization, the so-called…

核理论 · 物理学 2024-11-08 J. P. Linares Fernandez , N. Michel , M. Płoszajczak

Structures of excited states in $^{14}$C are investigated with a method of $\beta$-$\gamma$ constraint antisymmetrized molecular dynamics in combination with the generator coordinate method. Various excited states with the developed…

核理论 · 物理学 2011-03-10 Tadahiro Suhara , Yoshiko Kanada-En'yo

Structures of excited states in $^{11}$B are investigated with a method of $\beta$-$\gamma$ constraint antisymmetrized molecular dynamics in combination with the generator coordinate method. Various excited states with developed cluster…

核理论 · 物理学 2015-06-04 Tadahiro Suhara , Yoshiko Kanada-En'yo

The lowest positive- and negative-parity bands of $^{20}$Ne and neutron-rich even-even Ne isotopes are investigated using a theoretical framework based on energy density functionals. Starting from a self-consistent relativistic…

核理论 · 物理学 2018-02-27 P. Marević , J. -P. Ebran , E. Khan , T. Nikšić , D. Vretenar
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