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相关论文: Neutron-rich calcium isotopes within realistic Gam…

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The double Gamow-Teller strength distributions in even-$A$ Calcium isotopes were calculated using the nuclear shell model by applying the single Gamow-Teller operator two times sequentially on the ground state of the parent nucleus. The…

核理论 · 物理学 2018-12-12 N. Auerbach , Bui Minh Loc

In the present study, some static properties of odd isotopes of Ca were investigated in the non-relativistic shell model. We also suggested a novel suitable local potential model for the non-microscopic investigation of the mentioned…

核理论 · 物理学 2019-05-01 Mohsen Mousavi , Mohammad Reza Shojaei

A shell model effective interaction for nuclei beyond the double magic nucleus 78Ni is constructed. First, the single-particle evolutions for valence neutrons above the double magic 78Ni are systematically explored in the N = 51 isotones…

核理论 · 物理学 2025-10-10 N. Chen , J. G. Li , H. H. Li

We have developed a novel ab initio Gamow in-medium similarity renormalization group (Gamow IMSRG) in the complex-energy Berggren framework. The advanced Gamow IMSRG is capable of describing the resonance and nonresonant continuum…

核理论 · 物理学 2019-06-26 B. S. Hu , Q. Wu , Z. H. Sun , F. R. Xu

We have used an {\it ab initio} Gamow shell model to study the isospin symmetry breaking in the $A=16$ mirror nuclei of $^{16}$F, $^{16}$N, $^{16}$Ne and $^{16}$C. Starting from a chiral interaction with two-nucleon force (2NF) at N$^3$LO…

核理论 · 物理学 2023-12-29 S. Zhang , F. R. Xu , J. G. Li , B. S. Hu , Z. H. Cheng , N. Michel , Y. Z. Ma , Q. Yuan , Y. H. Zhang

$\beta$-decay half-lives of neutron-rich nuclei around $N=82$ are key data to understand the $r$-process nucleosynthesis. We performed large-scale shell-model calculations in this region using a newly constructed shell-model Hamiltonian,…

核理论 · 物理学 2021-03-01 Noritaka Shimizu , Tomoaki Togashi , Yutaka Utsuno

The shell model in the complex k-plane (the so-called Gamow Shell Model) has recently been formulated and applied to structure of weakly bound, neutron-rich nuclei. The completeness relations of Newton and Berggren, which apply to the…

核理论 · 物理学 2009-11-10 N. Michel , W. Nazarewicz , M. Ploszajczak

A strong effort will be dedicated in the coming years to extend the reach of ab initio nuclear-structure calculations to heavy doubly open-shell nuclei. In order to do so, the most efficient strategies to incorporate dominant many-body…

The structure of neutron-rich Cr isotopes is systematically investigated by using the spherical shell model. The calculations reproduce well the known energy levels for the even-even $^{52-62}$Cr and odd-mass $^{53-59}$Cr nuclei, and…

核理论 · 物理学 2009-01-01 K. Kaneko , Y. Sun , M. Hasegawa , T. Mizusaki

The $^8$Li$(n,\gamma)$$^9$Li reaction plays a critical role in several reaction chains leading to the nucleosynthesis of $A>12$ nuclei. Due to unstable nature of $^8$Li and the unavailability of neutron targets, direct measurements of this…

核理论 · 物理学 2023-05-30 G. X. Dong , X. B. Wang , N. Michel , M. Płoszajczak

We present the results of precision mass measurements of neutron-rich cadmium isotopes. These nuclei approach the $N=82$ closed neutron shell and are important to nuclear structure as they lie near doubly-magic $^{132}$Sn on the chart of…

In order to efficiently describe nucleon orbits around a heavy core nucleus, we propose locally peaked Gaussians orthogonalized to the occupied bound states in the core. We show the advantage of those functions in both numerical stability…

核理论 · 物理学 2022-02-23 W. Horiuchi , Y. Suzuki , M. A. Shalchi , Lauro Tomio

Nuclear charge radii of neutron-rich $^{47-49}$Sc isotopes were measured using collinear laser spectroscopy at CERN-ISOLDE. The new data reveal that the charge radii of scandium isotopes exhibit a distinct trend between $N=20$ and $N=28$,…

We present a new and efficient method to obtain a Gamow shell-model basis and matrix elements generated by realistic nucleon-nucleon interactions. We derive a self-consistent Hartree-Fock potential from the renormalized N3LO interaction…

核理论 · 物理学 2011-07-19 G. Hagen , M. Hjorth-Jensen , N. Michel

We formulate the Gamow shell model (GSM) in coupled-channel (CC) representation for the description of proton/neutron radiative capture reactions and present the first application of this new formalism for the calculation of cross-sections…

核理论 · 物理学 2016-06-17 K. Fossez , N. Michel , M. Płoszajczak , Y. Jaganathen , R. M. Id Betan

Coupled-cluster theory is a powerful tool for first-principles calculations of atomic nuclei, enabling accurate predictions of nuclear observables across the Segr\`e chart. While coupled-cluster computations are especially efficient at…

核理论 · 物理学 2026-04-08 F. Marino , F. Bonaiti , P. Demol , S. Bacca , T. Duguet , G. Hagen , G. R. Jansen , T. Papenbrock , A. Tichai

We provide an investigation of the spectroscopic factor of resonance states in $A =5-8$ nuclei, utilizing the Gamow shell model (GSM). Within the GSM, the configuration mixing is taken into account exactly with the shell model framework,…

核理论 · 物理学 2024-06-11 M. R. Xie , J. G. Li , N. Michel , H. H. Li , W. Zuo

We report on a study of neutron-rich nuclei around doubly magic 132Sn in terms of the shell model employing a realistic effective interaction derived from the CD-Bonn nucleon-nucleon potential. The short-range repulsion of the bare…

核理论 · 物理学 2017-08-23 A. Covello , L. Coraggio , A. Gargano , N. Itaco

According to standard stellar evolution, lithium abundance is believed to be a useful indicator of the stellar age. However, many evolved stars like red giants show huge fluctuations around expected theoretical abundances that are not yet…

核理论 · 物理学 2017-07-31 G. X. Dong , N. Michel , K. Fossez , M. Płoszajczak , Y. Jaganathen , R. M. Id Betan

We compute the charge radii of even-mass neon and magnesium isotopes from neutron number N = 8 to the dripline. Our calculations are based on nucleon-nucleon and three-nucleon potentials from chiral effective field theory that include delta…

核理论 · 物理学 2020-11-24 S. J. Novario , G. Hagen , G. R. Jansen , T. Papenbrock