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相关论文: A study of open shell nuclei using chiral two-body…

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We introduce a novel \abinitio many-body method designed to compute the properties of nuclei in the continuum. This approach combines well-established techniques, namely the Complex Scaling (CS) and Similarity Renormalization Group (SRG)…

核理论 · 物理学 2025-07-03 Osama Yaghi , Guillaume Hupin , Petr Navrátil

We derive and compute effective valence-space shell-model interactions from ab-initio coupled-cluster theory and apply them to open-shell and neutron-rich oxygen and carbon isotopes. Our shell-model interactions are based on nucleon-nucleon…

核理论 · 物理学 2014-10-08 G. R. Jansen , J. Engel , G. Hagen , P. Navratil , A. Signoracci

The nuclear structure dependence of direct reactions that remove a pair of like or unlike nucleons from a fast $^{12}$C projectile beam are considered. Specifically, we study the differences in the two-nucleon correlations present and the…

核理论 · 物理学 2015-06-05 E. C. Simpson , P. Navrátil , R. Roth , J. A. Tostevin

We have performed shell-model calculations for the even- and odd-mass N=82 isotones, focusing attention on low-energy states. The single-particle energies and effective two-body interaction have been both determined within the framework of…

核理论 · 物理学 2009-12-17 L. Coraggio , A. Covello , A. Gargano , N. Itaco , T. T. S. Kuo

An overview of the ab initio no-core shell model is presented. Recent results for light nuclei obtained with the chiral two-nucleon and three-nucleon interactions are highlighted. Cross section calculations of capture reactions important…

核理论 · 物理学 2007-11-20 Petr Navratil

A chiral quark model approach is used to investigate the $\pi^{-}p \to \eta n$ process at low energies. The roles of the most relevant nucleon resonances in $n\leq 2$ shells are briefly discussed.

核理论 · 物理学 2008-11-26 Jun He , Xianhui Zhong , Bijan Saghai , Qiang Zhao

The effect of the two-nucleon excitation from $p$ to $sd$ shell is discussed in $^{12}$C and $^{14}$C in the frame work of shell model. The recently suggested shell-model Hamiltonian YSOX provides an suitable tool to investigate the…

核理论 · 物理学 2016-02-02 Cenxi Yuan , Min Zhang , Nianwu Lan , Youjun Fang

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 explore the impact of nuclear matter saturation on the properties and systematics of finite nuclei across the nuclear chart. Using the ab initio in-medium similarity renormalization group (IM-SRG), we study ground-state energies and…

核理论 · 物理学 2017-07-12 J. Simonis , S. R. Stroberg , K. Hebeler , J. D. Holt , A. Schwenk

A $^{52}$Cr$(p,t)$$^{50}$Cr two-neutron pickup reaction was performed using the Q3D magnetic spectrograph at the Maier-Leibnitz-Laboratorium in Garching, Germany. Excited states in $^{50}$Cr were observed up to an excitation energy of 5.3…

Various electromagnetic few-body break-up reactions into the many-body continuum are calculated microscopically with the Lorentz integral transform (LIT) method. For three- and four-body nuclei the nuclear Hamiltonian includes two- and…

核理论 · 物理学 2008-11-26 W. Leidemann

We have investigated the prototype kaonic nucleus, $ppK^-$, using the method of Antisymmetrized Molecular Dynamics (AMD). In the present study we use a realistic $NN$ potential with strongly repulsive core, and a Chiral SU(3)-based…

核理论 · 物理学 2008-11-26 Akinobu Dote , Wolfram Weise

Accurate nuclear matrix elements (NMEs) for neutrinoless double beta decays of candidate nuclei are important for the design and interpretation of future experiments. Significant progress has been made in the modeling of these NMEs from…

核理论 · 物理学 2021-01-12 J. M. Yao

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

This study explores the electronic structure of the CH$_2$ molecule, modeled as a (6e, 23o) system using a 52-qubit quantum experiment, which is relevant for interstellar and combustion chemistry. We focused on calculating the dissociation…

We report on a study of a classical, finite system of confined particles in two dimensions with a two-body repulsive interaction. We first develop a simple analytical method to obtain equilibrium configurations and energies for few…

凝聚态物理 · 物理学 2009-10-31 G. Date , M. V. N. Murthy , Radhika Vathsan

The interaction of Lambda*=Lambda(1405) with a nucleon is studied from the viewpoint of chiral dynamics. We construct the coordinate space Lambda* N potential in the meson-exchange picture, which serves as a fundamental ingredient for the…

核理论 · 物理学 2011-10-26 Toshitaka Uchino , Tetsuo Hyodo , Makoto Oka

The Non-Symmetrized Hyperspherical Harmonics method (NSHH) is introduced in the hypernuclear sector and benchmarked with three different ab-initio methods, namely the Auxiliary Field Diffusion Monte Carlo method, the Faddeev-Yakubovsky…

We study the short-range nucleon-nucleon interaction in a nonrelativistic chiral constituent quark model by diagonalizing a Hamiltonian containing a linear confinement and a Goldstone boson exchange interaction between quarks. A finite…

高能物理 - 唯象学 · 物理学 2007-05-23 D. Bartz , Fl. Stancu

We investigate the thermodynamic equation of state of isospin-symmetric nuclear matter with microscopic nuclear forces derived within the framework of chiral effective field theory. Two- and three-body nuclear interactions constructed at…

核理论 · 物理学 2015-08-07 Corbinian Wellenhofer , Jeremy W. Holt , Norbert Kaiser , Wolfram Weise
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