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相关论文: Mirror energy difference and the structure of loos…

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The nuclear shell model is one of the successful models in theoretical understanding of nuclear structure. If a convenient effective interaction can be found between nucleons, various observables such as energies of nuclear states are…

核理论 · 物理学 2020-01-24 Serkan Akkoyun , Nadjet Laouet , Fatima Benrachi

Effective proton-neutron interactions, $V_{pn}$, in mirror nuclei are systematically analyzed using the ground-state atomic masses. A mirror symmetry of $V_{pn}$ is found for bound nuclei with a standard deviation of $\sigma=32$ keV.…

A review is presented of the development and current status of nuclear shell-model calculations in which the two-body effective interaction is derived from the free nucleon-nucleon potential. The significant progress made in this field…

核理论 · 物理学 2008-12-18 L. Coraggio , A. Covello , A. Gargano , N. Itaco , T. T. S. Kuo

In this paper, we first give a brief review of the theoretical framework for microscopic shell-model calculations starting from the free nucleon-nucleon potential. In this context, we discuss the use of the low-momentum nucleon-nucleon…

核理论 · 物理学 2008-11-26 A. Covello , L. Coraggio , A. Gargano , N. Itaco

The properties of $T=1/2$ mirror nuclei in the $fp$ shell have been studied with a microscopic residual interaction. The isospin-nonconserving interaction is derived from a high-precision charge-dependent Bonn \textit{NN} potential using…

核理论 · 物理学 2009-09-24 C. Qi , F. R. Xu

We compute the proton-neutron entanglement entropy in the interacting nuclear shell model for a variety of nuclides and interactions. Some results make intuitive sense, for example that the shell structure, as governed by single-particle…

核理论 · 物理学 2023-03-20 Calvin W. Johnson , Oliver C. Gorton

Variations in the nuclear mean-field, in neutron-rich nuclei, are investigated within the framework of the nuclear shell model. The change is identified to originate mainly from the monopole part of the effective two-body proton-neutron…

核理论 · 物理学 2009-11-10 N. A. Smirnova , A. De Maesschalck , A. Van Dyck , K. Heyde

In this work, we present a systematic study of low-lying states and electromagnetic properties of the semi-magic $N = 82$ isotonic chain with proton number $Z=51$-77, using the full configuration interaction shell model with a newly…

核理论 · 物理学 2026-01-15 Y. X. Yu , Q. Y. Chen , Chong Qi , G. J. Fu

The recently-proposed effective shell-model interaction, the pairing-plus-multipole Hamiltonian with the monopole interaction obtained by empirical fits starting from the monopole-based universal force (PMMU), is systematically applied to…

核理论 · 物理学 2015-10-20 K. Kaneko , T. Mizusaki , Y. Sun , S. Tazaki

Odd-odd nuclei around double shell closures are a direct source of information on the proton-neutron interaction between valence nucleons. We have performed shell-model calculations for doubly odd nuclei close to $^{208}$Pb, $^{132}$Sn and…

核理论 · 物理学 2009-11-10 A. Covello , L. Coraggio , A. Gargano , N. Itaco

We have performed realistic shell-model calculations for nuclei around doubly magic 100Sn and 132Sn using an effective interaction derived from the Bonn A nucleon-nucleon potential. The results are in remarkably good agreement with the…

核理论 · 物理学 2022-03-02 A. Covello , L. Coraggio , A. Gargano

The present paper is comprised of two parts. First, we give a brief survey of the theoretical framework for microscopic nuclear structure calculations starting from a free nucleon-nucleon potential. Then, we present some selected results of…

核理论 · 物理学 2007-05-23 A. Covello , L. Coraggio , A. Gargano , N. Itaco

In the present work, we have reported comprehensive study of the $sd$-shell nuclei Si and P with neutron number varying from $N = 9$ to $N = 20$ using the microscopic effective valence shell interactions, namely, N3LO, JISP16 and DJ16A.…

核理论 · 物理学 2023-04-05 Priyanka Choudhary , Praveen C. Srivastava

In order to comprehend the process underlying mirror energy differences in mirror pairs, we have performed shell-model calculations for $T_z= \pm 2$ $sd$-shell nuclei in the mass range $A$= 20 to 36 and neutron number varying from $N$= 8 to…

核理论 · 物理学 2025-12-23 Sakshi Shukla , Praveen C. Srivastava , Kazunari Kaneko

We calculate the low-lying spectra of heavy tin isotopes from A=120 to A=130 using the 2s1d0g_{7/2}0h_{11/2} shell to define the model space. An effective interaction has been derived using 132Sn as closed core employing perturbative…

核理论 · 物理学 2009-10-30 A. Holt , T. Engeland , M. Hjorth-Jensen , E. Osnes

The asymmetry in the energy spectra between mirror nuclei (the Thomas-Ehrman shifts) around $^{16}$O is investigated from a phenomenological viewpoint. The recent data on proton-rich nuclei indicates that the residual nuclear interaction is…

核理论 · 物理学 2009-10-31 K. Ogawa , H. Nakada , S. Hino , R. Motegi

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

We aim to study the properties of nuclei in the south region of $^{208}$Pb systematically, including the binding and excitation energies and electromagnetic properties, in order to predict unknown properties of these nuclei, such as…

We describe the properties of complex nuclei, such as the Sn isotopes with mass numbers A = 100 - 132, in terms of the free nucleon--nucleon interaction as obtained from meson--exchange theory. This amounts to first calculating an effective…

核理论 · 物理学 2007-05-23 T. Engeland , M. Hjorth-Jensen , A. Holt , E. Osnes
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