Arch behaviour of charge radii of Ca isotopes has been a long standing problem in nuclear theory. Recently, it was proposed that the Fayans pairing is a possible solution to obtain it using nuclear density functional theory. In this talk, we will explain the mechanism why the Fayans pairing can show the arch behaviour.
The self-consistent mean-field calculation with semi-realistic interactions has predicted that N=58 becomes a magic number at Ni, at which n2s1/2 is the highest occupied orbit. Thereby, Ni-86 can be very distinguished, as it is a doubly-magic nucleus and possesses a neutron halo simultaneously. With the least ambiguities in the many-body wave function, it may provide a unique opportunity to...
The rapid neutron capture process, r-process, is responsible for the production of more than half of the elements heavier than iron. However, the physical conditions and astronomical sites of the r-process have not yet been determined. The lack of experimental data on the properties of the involved exotic nuclei is a significant source of uncertainty. In particular, the difficulty of directly...
Ionization chambers are widely used in nuclear physics experiments and their role has recently expanded to active target applications. VOICE (Vertically Oriented wire Ionization Chamber with sEgmentation) is being developed at the Center for Exotic Nuclear Studies (CENS), Institute for Basic Science (IBS), to enable direct measurements of alpha induced reaction cross sections. The detector...
The neutron-rich rare-earth nuclei in the A$\sim$160 mass region lie in one of the deformed sectors of the nuclear chart. Examining these nuclei helps us understand the evolution of nuclear deformation. The systematics of the first excited $2^+$ states in even-even nuclei suggest that Nd ($Z=60$) isotopes exhibit among the largest ground-state deformations in the A$\sim$160 region....
Nuclear fission is a phenomenon in which a nucleus splits into two (or more) lighter nuclei. From a theoretical perspective, fission has been studied using macroscopic approaches such as the Langevin method, as well as the microscopic frameworks including the DFT(density functional theory) and GCM(generator coordinate method). A microscopic understanding of nuclear fission at the nucleonic...
We propose a multiconfiguration time-dependent Hartree–Fock (MCTDHF) method for ab initio descriptions of many-body tunneling in nuclear processes. Originally developed for intense laser-driven multielectron dynamics [1], the MCTDHF method employs a configuration interaction (CI) wavefunction in which both the CI coefficients and single-particle functions are treated as time-dependent...
