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相关论文: Continuum Coupling and Single-Nucleon Overlap Inte…

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The density and temperature dependence of nucleonic single particle spectral function in symmetric nuclear matter at finite temperatures and densities beyond normal nuclear matter density is investigated in a model emphasizing short-range…

核理论 · 物理学 2009-11-10 Frank Froemel , Horst Lenske , Ulrich Mosel

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

This work reviews foundations and applications of the complex-energy continuum shell model that provides a consistent many-body description of bound states, resonances, and scattering states. The model can be considered a quasi-stationary…

核理论 · 物理学 2009-01-08 N. Michel , W. Nazarewicz , M. Ploszajczak , T. Vertse

We present results of hypernuclei calculated in the latest quark-meson coupling (QMC) model, where the effect of the mean scalar field in-medium on the one-gluon exchange hyperfine interaction, is also included self-consistently. The extra…

核理论 · 物理学 2011-02-16 K. Tsushima , P. A. M. Guichon

We explore with self-consistent 2D F{\sc{ornax}} simulations the dependence of the outcome of collapse on many-body corrections to neutrino-nucleon cross sections, the nucleon-nucleon bremsstrahlung rate, electron capture on heavy nuclei,…

太阳与恒星天体物理 · 物理学 2018-01-30 Adam Burrows , David Vartanyan , Joshua C. Dolence , M. Aaron Skinner , David Radice

Background: An asymptotic normalization coefficient (ANC) characterizes the asymptotic form of a one-nucleon overlap integral required for description of nucleon-removal reactions. Purpose: We investigate the impact of the particle…

核理论 · 物理学 2015-06-04 J. Okołowicz , N. Michel , W. Nazarewicz , M. Płoszajczak

We investigate single-particle properties in infinite nuclear matter using a variety of interactions. One of the focal points is to study the impact of chiral three-nucleon forces on the nucleon self-energy and related quantities, such as…

核理论 · 物理学 2020-12-10 Francesca Sammarruca , Herbert Muether , Ruprecht Machleidt

Spectroscopic amplitudes play an important role in nuclear capture reactions. These amplitudes are shown to include both single-particle and polarization effects: the former through their spatial dependence and the latter through their…

核理论 · 物理学 2009-11-07 Jutta Escher , Byron K. Jennings , Helmy S. Sherif

A resonant state at $3.21^{+0.12}_{-0.04}$\,MeV, located just above the one-neutron separation threshold, was observed for the first time in $^{12}$Be from the $^{11}$Be\,$(d,p)^{12}$Be one-neutron transfer reaction in inverse kinematics.…

The optical potential of halo and weakly bound nuclei has a long range part due to the coupling to breakup that damps the elastic scattering angular distributions at all angles for which the effect of the nuclear interaction is felt. In…

核理论 · 物理学 2009-11-07 Angela Bonaccorso , Florin Carstoiu

Resonance is a general phenomenon which can happen in classic or quantum systems. An unbound many-body quantum system can undergo a self-resonant process. It has long been a challenge how to describe unbound many-body quantum systems in…

核理论 · 物理学 2020-01-23 B. S. Hu , Q. Wu , Z. H. Sun , F. R. Xu

Modeling lepton-nucleus scattering with the accuracy required to extract neutrino-oscillation parameters from long- and short-baseline experiments necessitates retaining most quantum-mechanical effects. One such effect is the interference…

核理论 · 物理学 2023-12-21 Alessandro Lovato , Noemi Rocco , Noah Steinberg

A theoretical description of the radial density profile for charged particles with Yukawa interaction in a harmonic trap is described. At strong Coulomb coupling shell structure is observed in both computer simulations and experiments.…

统计力学 · 物理学 2015-05-30 Henning Bruhn , Hanno Kählert , Torben Ott , Michael Bonitz , Jeffrey Wrighton , James Dufty

The quark-meson coupling model, based on a mean field description of non-overlapping nucleon bags bound by the self-consistent exchange of $\sigma$, $\omega$ and $\rho$ mesons, is extended to investigate the properties of finite nuclei.…

核理论 · 物理学 2010-02-17 P. A. M. Guichon , K. Saito , E. Rodionov , A. W. Thomas

The relativistic Hartree approach describing the bound states of both nucleons and anti-nucleons in finite nuclei has been extended to include tensor couplings for the $\omega$- and $\rho$-meson. After readjusting the parameters of the…

核理论 · 物理学 2009-11-07 Guangjun Mao

Highly-excited single-particle states in nuclei are coupled with the excitations of a more complex character, first of all with collective phonon-like modes of the core. In the framework of the quasiparticle-phonon model we consider the…

核理论 · 物理学 2009-11-10 Chavdar Stoyanov , Vladimir Zelevinsky

We demonstrate that the intricate energy spectrum of neutron-rich helium isotopes can be straightforwardly described by taking advantage of the low-energy properties of neutron-neutron interaction and the scale separation that is present in…

核理论 · 物理学 2020-06-03 K. Fossez , J. Rotureau , W. Nazarewicz

Single-particle overlap functions and spectroscopic factors are calculated on the basis of Jastrow-type one-body density matrices of open-shell nuclei constructed by using a factor cluster expansion. The calculations use the relationship…

We perform large shell model calculations for Calcium isotopes in the full fp shell by using the realistic Kuo-Brown interaction. The Calcium isotopes are especially interesting because the nearest-neighbour spacing distribution P(s) of…

核理论 · 物理学 2007-05-23 V. R. Manfredi , J. M. G. Gomez , L. Salasnich

We examine supersymmetric theories with approximately conformal sectors. Without an IR cutoff the theory has a continuum of modes, which are often referred to as "unparticles." Making use of the AdS/CFT correspondence we find that in the…

高能物理 - 唯象学 · 物理学 2009-12-31 Haiying Cai , Hsin-Chia Cheng , Anibal D. Medina , John Terning