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Related papers: Plasma shielding effects on nuclear spectra: $^{18…

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We discuss effects of the electron plasma on charged-current neutrino-nucleus reaction, $(\nu_e,e^-)$ in a core-collapse supernova environment. We first discuss the electron screening effect on the final state interaction between the…

Nuclear Theory · Physics 2008-11-26 F. Minato , K. Hagino , N. Takigawa , A. B. Balantekin , Ph. Chomaz

The density functional determining the Coulomb energy of nuclei is calculated to the first order in $e^2$. It is shown that the Coulomb energy includes three terms: the Hartree energy; the Fock energy; and the correlation Coulomb energy…

Nuclear Theory · Physics 2009-11-07 V. R. Shaginyan

The broadening of lines by Stark effect is widely used for inferring electron density and temperature in plasmas. Stark-effect calculations often rely on atomic data (transition rates, energy levels,...) not always exhaustive and/or valid…

Atomic Physics · Physics 2017-04-05 Jean-Christophe Pain , Franck Gilleron , Maxime Comet , Dominique Gilles

We investigate effects of the Coulomb force on the nuclear pairing properties by performing the Gogny Hartree-Fock-Bogolyubov calculations for the $N=20$, $28$, $50$, $82$ and $126$ nuclei. The Coulomb force reduces the proton pair energy…

Nuclear Theory · Physics 2011-03-22 H. Nakada , M. Yamagami

The first excited $J^\pi=0^+$ state of $^{12}$C, the so-called Hoyle state, plays an essential role in a triple-$\alpha$ ($^4$He) reaction, which is a main contributor to the synthesis of $^{12}$C in a burning star. We investigate the…

Nuclear Theory · Physics 2021-05-10 Lai Hnin Phyu , H. Moriya , W. Horiuchi , K. Iida , K. Noda , M. T. Yamashita

The spectral function for an electron one-component plasma is calculated self-consistently using the GW0 approximation for the single-particle self-energy. In this way, correlation effects which go beyond the mean-field description of the…

Plasma Physics · Physics 2009-11-13 Carsten Fortmann

We study nuclear symmetry energy and the thermodynamic instabilities of asymmetric nuclear matter in a self-consistent manner by using a modified quark-meson coupling model where the confining interaction for quarks inside a nucleon is…

Nuclear Theory · Physics 2015-12-16 R. N. Mishra , H. S. Sahoo , P. K. Panda , N. Barik , T. Frederico

A realistic evaluation of Coulomb potential has been made for some selected nuclei using the available model-independent data for the charge density and the recent development of Coulomb energy-density functional. Within the Woods-Saxon…

Nuclear Theory · Physics 2023-03-03 L. Xayavong , Y. Lim

We investigate the statistical properties of 56-57Fe within a model capable of treating all the nucleons as active in an infinite model space including pairing effects. Working within the canonical ensemble, our model is built on…

Nuclear Theory · Physics 2018-07-18 Bassam Shehadeh , James P. Vary

We study the dispersion properties of surface plasmon oscillations in a semi-bounded semiconductor plasma with the effects of the Coulomb exchange force associated with the spin polarization of electrons and holes as well as the effects of…

Plasma Physics · Physics 2018-03-02 M. Shamansouri , A. P. Misra

The expression for the Debye shielding in plasma physics is usually derived under the assumptions that the plasma particles are weakly coupled, so their kinetic energy is much larger than the potential energy between them, and that the…

Plasma Physics · Physics 2016-12-30 M. A. Martínez-Fuentes , J. J. E. Herrera-Velázquez

We analyze the effect of plasma screening on nuclear reaction rates in dense matter composed of atomic nuclei of one or two types. We perform semiclassical calculations of the Coulomb barrier penetrability taking into account a radial mean…

Solar and Stellar Astrophysics · Physics 2009-08-20 A. I. Chugunov , H. E. De Witt

Dense plasma environment affects the electronic structure of ions via variations of the microscopic electrical fields, also known as plasma screening. This effect can be either estimated by simplified analytical models, or by…

The effects of the highly damped modes in the energy and reaction rates in a plasma are discussed. These modes, with wavenumbers $k \gg k_{D}$, even being only weakly excited, with less than $k_{B}T$ per mode, make a significant…

Astrophysics · Physics 2008-11-26 Merav Opher , Luis O. Silva , Dean E. Dauger , Viktor K. Decyk , John M. Dawson

The classical Debye-H\"{u}ckel screening effect of the electrostatic field generated by isolated charged particles immersed in a plasma is reviewed. The validity of the underlying mathematical model, and particularly of the weak-field…

Plasma Physics · Physics 2009-11-11 D. Sarmah , M. Tessarotto , M. Salimullah

I consider the $\gamma W$-box correction to superallowed nuclear $\beta$-decays in the framework of dispersion relations. I address a novel effect of a distortion of the emitted electron energy spectrum by nuclear polarizabilities and show…

Nuclear Theory · Physics 2019-07-31 Mikhail Gorchtein

The evolution of single-particle energies with varying isospin asymmetry in the shell model is an important issue when predicting changes in the shell structure for exotic nuclei. In many cases pseudospin partner levels, that are almost…

Nuclear Theory · Physics 2008-11-26 S. Typel

In the space environment, instruments onboard of spacecrafts can be affected by displacement damage due to radiation. The differential scattering cross section for screened nucleus--nucleus interactions - i.e., including the effects due to…

The dynamics of nuclear reaction in plasma is a fundamental issue in many high energy density researches, such as the astrophysical reactions and the inertial confinement fusion. The effective reaction cross-sections and ion stopping power…

The Debye shielding of a charge immersed in a flowing plasma is an old classic problem in plasma physics. It has been given renewed attention in the last two decades in view of experiments with complex plasmas, where charged dust particles…

Plasma Physics · Physics 2015-06-18 Roman Kompaneets , Alexei V. Ivlev , Vladimir Nosenko , Gregor E. Morfill