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Related papers: Neutron-rich calcium isotopes within realistic Gam…

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We study the neutron-rich calcium isotopes performing shell-model calculations with a realistic effective interaction. This is derived from the CD-Bonn nucleon-nucleon potential renormalized by way of the V-low-k approach, considering 48Ca…

Nuclear Theory · Physics 2011-02-18 L. Coraggio , A. Covello , A. Gargano , N. Itaco

The Gamow shell model (GSM) framework has been extended to the study of weakly bound hypernuclei. As a first application, the neutron-rich He hyper-isotope chains, from 6{\Lambda}He to 9{\Lambda}He have been investigated to accurately…

Nuclear Theory · Physics 2025-05-13 Xin Li , N. Michel , J. G. Li , Xian-Rong Zhou

We have studied neutron-rich calcium isotopes 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 potential is renormalized by way of…

Nuclear Theory · Physics 2009-10-29 L. Coraggio , A. Covello , A. Gargano , N. Itaco

We report in this paper a study in terms of the nuclear shell model about the location of the calcium isotopes drip line. The starting point is considering the realistic two-body potential derived by Entem and Machleidt within chiral…

Nuclear Theory · Physics 2020-12-30 L. Coraggio , G. De Gregorio , A. Gargano , N. Itaco , T. Fukui , Y. Z. Ma , F. R. Xu

The Gamow shell model has shown to efficiently describe weakly bound and unbound nuclear systems, as internucleon correlations and continuum coupling are both taken into account in this model. In the present work, we study neutron-dripline…

Nuclear Theory · Physics 2021-03-09 J. G. Li , N. Michel , W. Zuo , F. R. Xu

The structure of weakly bound and unbound nuclei close to particle drip lines is one of the major science drivers of nuclear physics. A comprehensive understanding of these systems goes beyond the traditional configuration interactions…

Nuclear Theory · Physics 2017-11-29 Y. Jaganathen , R. M. Id Betan , N. Michel , W. Nazarewicz , M. Ploszajczak

We employ interactions from chiral effective field theory and compute the binding energies and low-lying excitations of calcium isotopes with the coupled-cluster method. Effects of three-nucleon forces are included phenomenologically as…

Nuclear Theory · Physics 2012-07-19 G. Hagen , M. Hjorth-Jensen , G. R. Jansen , R. Machleidt , T. Papenbrock

This work presents the first continuum shell-model study of weakly bound neutron-rich nuclei involving multiconfiguration mixing. For the single-particle basis, the complex-energy Berggren ensemble representing the bound single-particle…

Nuclear Theory · Physics 2009-11-07 N. Michel , W. Nazarewicz , M. Ploszajczak , K. Bennaceur

Background: Weakly bound and unbound nuclei close to particle drip lines are laboratories of new nuclear structure physics at the extremes of neutron/proton excess. The comprehensive description of these systems requires an open quantum…

Nuclear Theory · Physics 2020-08-12 X. Mao , J. Rotureau , W. Nazarewicz , N. Michel , R. M. Id Betan , Y. Jaganathen

We present the study of weakly bound, neutron-rich nuclei using the nuclear shell model employing the complex Berggren ensemble representing the bound single-particle states, unbound Gamow states, and the non-resonant continuum. In the…

Nuclear Theory · Physics 2009-11-10 N. Michel , W. Nazarewicz , M. Ploszajczak , J. Okolowicz

Isotope shifts in the nuclear charge radius of even and odd calcium isotopes are calculated within the nuclear shell model. The model space includes all configurations of nucleons in the $2s, 1d_{3/2}, 1f_{7/2}, {\rm and} ~2p_{3/2}$ orbits.…

Nuclear Theory · Physics 2009-11-07 E. Caurier , K. Langanke , G. Martinez-Pinedo , F. Nowacki , P. Vogel

Despite being a complex many-body system, the atomic nucleus exhibits simple structures for certain "magic" numbers of protons and neutrons. The calcium chain in particular is both unique and puzzling: evidence of doubly-magic features are…

The calcium isotopes have emerged as an important testing ground for new microscopically derived shell-model interactions, and a great deal of focus has been directed toward this region. We investigate the relative spectroscopic strengths…

The eastern region of the calcium isotope chain of the nuclei chart is, nowadays, of great activity. The experimental assessment of the limit of stability is of interest to confirm or improve microscopic theoretical models. The goal of this…

Nuclear Theory · Physics 2020-12-02 A. C. Dassie , R. M. Id Betan

Spectroscopic factors involving well bound nucleons in light nuclei are calculated with standard shell model, no-core shell model and Gamow shell model. Continuum coupling is included exactly in the Gamow shell model, due to the use of the…

Nuclear Theory · Physics 2023-03-21 M. R. Xie , J. G. Li , N. Michel , H. H. Li , S. T. Wang , H. J. Ong , W. Zuo

Although they are part of the lightest nuclei, the hydrogen isotopes are not well understood both experimentally and theoretically. Indeed, besides deuteron and triton, all known hydrogen isotopes are resonances of complex structure. Even…

Nuclear Theory · Physics 2023-05-10 H. H. Li , J. G. Li , N. Michel , W. Zuo

Recently, the shell model in the complex k-plane (the so-called Gamow Shell Model) has been formulated using a complex Berggren ensemble representing bound single-particle states, single-particle resonances, and non-resonant continuum…

Nuclear Theory · Physics 2015-06-26 N. Michel , W. Nazarewicz , M. Ploszajczak , J. Rotureau

Structure of weakly bound/unbound light nuclei is often related to the low-energy decay channels involving composite particles like deuteron or ${\alpha}$-particle. These channels are essential to understand the appearance of light nuclei…

Nuclear Theory · Physics 2019-05-24 A. Mercenne , N. Michel , M. Ploszajczak

We have studied neutron-rich carbon isotopes in terms of the shell model employing a realistic effective hamiltonian derived from the chiral N3LOW nucleon-nucleon potential. The single-particle energies and effective two-body interaction…

Nuclear Theory · Physics 2014-11-21 L. Coraggio , A. Covello , A. Gargano , N. Itaco
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