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相关论文: A microscopic description for the alpha decay of n…

200 篇论文

The quality of HFB wave functions are tested by comparing the theoretically calculated results with the available experimental data for a number of spectroscopic properties like yrast spectra, reduced B(E2) transition probabilities,…

A consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Lambda-hypernuclei. We adopt a nuclear matter formalism extended to finite…

核理论 · 物理学 2015-03-19 E. Bauer , G. Garbarino

The universal curve is one of the simple ways to get preliminary information about the Alpha-decay half-life times of heavy nuclei. We try to find parameterization for the universal curve of Alpha decay based on semi-microscopic…

核理论 · 物理学 2015-07-24 M. Ismail , W. M. Seif , A. Y. Ellithi , A. Abdurrahman

After identifying the nuclei in the regions near A =80 and A = 160 for which beta-decay rates have the greatest effect on weak and main r-process abundance patterns, we apply the finite-amplitude method (FAM) with Skyrme energy-density…

核理论 · 物理学 2016-11-15 T. Shafer , J. Engel , C. Fröhlich , G. C. McLaughlin , M. Mumpower , R. Surman

We calculate the effect of intense laser fields on nuclear alpha decay processes, using realistic and quantitative nuclear potentials. We show that alpha decay rates can indeed be modified by strong laser fields to some finite extent. We…

原子物理 · 物理学 2019-05-01 Jintao Qi , Tao Li , Ruihua Xu , Libin Fu , Xu Wang

We investigate the \alpha-decay of a spherical nucleus under the influence of an ultra-intense laser field for the case when the radius vector joining the center-of-masses of the \alpha-particle and the daughter is aligned with the…

核理论 · 物理学 2013-07-26 Serban Misicu , Margarit Rizea

The double folding (DF) approach is one of the widely used methods for finding nucleus-nucleus interaction potential. In the present work, the influence of the nuclear matter density on the DF potential and on the Coulomb barrier parameters…

We formulate a microscopic theory of the decay of a compound nucleus through fission which generalizes earlier microscopic approaches of fission dynamics performed in the framework of the adiabatic hypothesis. It is based on the constrained…

核理论 · 物理学 2010-02-17 K. Dietrich , J. -J. Niez , J. -F. Berger

We present an evaluation of the non-mesonic decay widths for Lambda-hypernuclei (Lambda N --> NN, Lambda NN --> NNN) within the framework of the polarization propagator method. The full Lambda self-energy is evaluated microscopically in…

核理论 · 物理学 2009-10-31 W. M. Alberico , A. De Pace , G. Garbarino , R. Cenni

Some time ago the possibility of classical (without Gamow tunneling) universal description of radioactive nuclei decay was demonstrated. Such possibility is basis on the classical interpretation of Bohmian Psi-field reality in…

核理论 · 物理学 2016-08-03 Strachimir Cht. Mavrodiev , M. A. Deliyergiyev

In the recent experiments designed to synthesize the element 115 in the $^{243}$Am+$^{48}$Ca reaction at Dubna in Russia, three similar decay chains consisting of five consecutive $\alpha$-decays, and another different decay chain of four…

核理论 · 物理学 2007-05-23 L. S. Geng , H. Toki , J. Meng

The nuclear mean-field potential built up by the $^{12}$C+$^{12}$C interaction at energies relevant for the carbon burning process is calculated in the double-folding model (DFM) using the realistic ground-state density of $^{12}$C and the…

核理论 · 物理学 2018-12-14 Le Hoang Chien , Dao T. Khoa , Do Cong Cuong , Nguyen Hoang Phuc

An intense study of the alpha decay properties of the isotopes of superheavy element Z=113 have been performed within the Coulomb and proximity potential model for deformed nuclei (CPPMDN) within the wide range 255 l.e. A l.e. 314. The…

核理论 · 物理学 2016-05-04 K. P. Santhosh , A. Augustine , C. Nithya , B. Priyanka

A high precision method to determine fusion in the capture of $\alpha$-particles by nuclei is presented. For $\alpha$-capture by $^{40}{\rm Ca}$ and $^{44}{\rm Ca}$, such an approach gives (1) the parameters of the $\alpha$--nucleus…

核理论 · 物理学 2015-04-21 Sergei P. Maydanyuk , Peng-Ming Zhang , Sergei V. Belchikov

In this paper we are able to justify the existence or no of photons emitted during $\alpha$ decay, based on the average half life times using the BCS superconductivity and superfluidity theories. The proposed model suggests two possible…

核理论 · 物理学 2011-10-27 David Verrilli , Rafael Martín

Based on Extreme Gradient Boosting (XGBoost) framework optimized via Bayesian hyperparameter tuning, we investigated the {\alpha}-decay energy and half-life of superheavy nuclei. By incorporating key nuclear structural features-including…

The nonmesonic weak decay of $\Lambda$ hypernuclei is studied using nuclear matter. We have developed a formalism which gives a microscopic interpretation of the process of emission of particles originated in this decay. More specifically,…

核理论 · 物理学 2015-06-26 E. Bauer

It is shown that the use of a density dependent effective Pauli potential together with a nucleon-nucleon interaction potential plays a crucial role to reproduce not only the binding energies but also the matter root mean square radii of…

核理论 · 物理学 2009-05-13 M. Angeles Perez-Garcia , K. Tsushima , A. Valcarce

We compute the $\beta$-decay $ft$-values within the frameworks of the energy density functional (EDF) and the interacting boson model (IBM). Based on the constrained mean-field calculation with the Gogny-D1M EDF, the IBM Hamiltonian for an…

核理论 · 物理学 2020-05-06 K. Nomura , R. Rodríguez-Guzmán , L. M. Robledo

Neutrinoless double beta decay ($\znbb$) induced by superparticle exchange is investigated. Such a supersymmetric (SUSY) mechanism of $\znbb$ decay arises within SUSY theories with R-parity non-conservation (\rp). We consider the minimal…

高能物理 - 唯象学 · 物理学 2014-11-17 M. Hirsch , H. V. Klapdor-Kleingrothaus , S. G. Kovalenko