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相关论文: Two-Frequency Shell-Model Calculations for p-Shell…

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Shell-model calculations with density-dependent interactions are performed to investigate $pf$-shell nuclei, examining the ground-state energies, low-lying spectra, and $E2$ transition probabilities. The density-dependent terms in the…

核理论 · 物理学 2026-01-26 K. Yoshinaga , N. Shimizu , T. Nakatsukasa

A calculation of the spectroscopic properties, energy levels and electromagnetic transitions and moments, of the ten nuclei $^{128,130}$Te, $^{128,130}$I, $^{128,130}$Xe, $^{129,131}$I, $^{127,129}$Te within the framework of the interacting…

核理论 · 物理学 2013-01-31 N. Yoshida , F. Iachello

We perform realistic shell-model calculations for nuclei with valence nucleons outside 48Ca, employing two different model spaces. The matrix elements of the effective two-body interaction and electromagnetic multipole operators have been…

核理论 · 物理学 2014-03-24 L. Coraggio , A. Covello , 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

We introduce an algorithm to obtain coefficients of fractional parentage for light $p$-shell nuclei. The coefficients enable to use Jacobi coordinates in no-core shell model calculations separating off the center-of-mass motion. Fully…

核理论 · 物理学 2016-04-26 S. Liebig , U. -G. Meißner , A. Nogga

We have performed a shell-model study of the two nuclei 210Po and 206Hg, having and lacking two protons with respect to doubly magic 208Pb. In our calculations we have employed realistic effective interactions derived from the Bonn A…

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

The two-nucleon spectral function in nuclear matter is studied using Correlated Basis Function perturbation theory, including central and tensor correlations produceded by a realistic hamiltonian. The factorization property of the…

核理论 · 物理学 2009-10-31 Omar Benhar , Adelchi Fabrocini

The first detailed comparison of the low-momentum interaction V_{low k} with G matrices is presented. We use overlaps to measure quantitatively the similarity of shell-model matrix elements for different cutoffs and oscillator frequencies.…

核理论 · 物理学 2009-11-11 A. Schwenk , A. P. Zuker

Performing a shell model calculation for heavy nuclei has been a long-standing problem in nuclear physics. Here we propose one possible solution. The central idea of this proposal is to take the advantages of two existing models, the…

核理论 · 物理学 2009-11-10 Yang Sun , Cheng-Li Wu

Large basis untruncated shell model calculations have been done for the A=138 neutron -rich nuclei in the pi(gdsh) X nu(hfpi) valence space above the 132Sn core. Two (1+2) -body nuclear Hamiltonians, viz., realistic CWG and empirical SMPN…

核理论 · 物理学 2008-11-26 S. Sarkar , M. Saha Sarkar

The structure of the N=50 isotones 98Cd, 97Ag, and 96Pd is studied in terms of shell model employing a realistic effective interaction derived from the Bonn-A nucleon-nucleon potential. The single-hole energies are fixed by resorting to an…

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

The sensitivity of nucleon-nucleus elastic scattering to the off-shell behavior of realistic nucleon-nucleon interactions is investigated when on-shell equivalent nucleon-nucleon potentials are used. The study is based on applications of…

核理论 · 物理学 2008-11-26 H. F. Arellano , F. A. Brieva , M. Sander , H. V. von Geramb

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 discuss the use of the low-momentum nucleon-nucleon NN interaction V-low-k in the derivation of the shell-model effective interaction and emphasize its practical value as an alternative to the Brueckner G-matrix method. We present some…

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

First self-consistent realistic shell-model calculation for the light p-shell nuclei is performed, starting from the high-precision nucleon-nucleon (NN) CD-Bonn potential. This realistic potential is renormalized deriving a low-momentum NN…

核理论 · 物理学 2009-11-11 L. Coraggio , N. Itaco

Spectral distribution theory, which can be used to compare microscopic interactions over a broad range of nuclei, is applied in an analysis of two modern effective interactions based on the realistic CD-Bonn potential for $0\hbar\Omega$…

核理论 · 物理学 2008-11-26 K. D. Sviratcheva , J. P. Draayer , J. P. Vary

We present the first ab initio calculations for p-shell single-Lambda hypernuclei. For the solution of the many-baryon problem, we develop two variants of the no-core shell model with explicit $\Lambda$ and $\Sigma^+$, $\Sigma^0$,…

The shell model within the $2s1d0g_{7/2}0h_{11/2}$ shell is applied to calculate nuclear structure properties of the even Z=52 - 62, N=82 isotones. The results are compared with experimental data and with the results of a quasiparticle…

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

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

A FORM based package (ON-SHELL2) for the calculation of two loop self-energy diagrams with one nonzero mass in internal lines and the external momentum on the same mass shell is elaborated. The algorithm, based on recurrence relations…

高能物理 - 唯象学 · 物理学 2014-11-17 J. Fleischer , M. Yu. Kalmykov