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The separation energy and half-life of some heavy proton emitting nuclei, and the single-particle structure of the unbound 11-N, have been evaluated by implementing a careful numerical treatment to solve Schrodinger equation in a continuum…

Nuclear Theory · Physics 2009-11-11 T. N. Leite , N. Teruya , H. Dias , .

We develop the microscopic description of the two-nucleon radioactivity in the framework of the Shell Model Embedded in the Continuum. This approach is applied for the description of spontaneous two-proton radioactivity in $^{45}$Fe,…

Nuclear Theory · Physics 2011-08-17 J. Rotureau , J. Okolowicz , M. Ploszajczak

The newly developed nonadiabatic method based on the coupled-channel Schroedinger equation with Gamow states is used to study the phenomenon of proton radioactivity. The new method, adopting the weak coupling regime of the…

Nuclear Theory · Physics 2009-11-06 B. Barmore , A. T. Kruppa , W. Nazarewicz , T. Vertse

Within the framework of the dinuclear system model, production cross sections of proton-rich nuclei with charged numbers of Z=84-90 are investigated systematically. Possible combinations with the $^{28}$Si, $^{32}$S, $^{40}$Ar bombarding…

Nuclear Theory · Physics 2017-05-17 Peng-Hui Chen , Zhao-Qing Feng , Fei Niu , Ya-Fei Guo , Hong-Fei Zhang , Jun-Qing Li , Gen-Ming Jin

The binding energies and proton separation energies of nuclides with $Z, N = 30-50$ are investigated, based on the shell model with an uncertainty analysis through statistical methods. Several formulas are used to obtain the binding…

Nuclear Theory · Physics 2022-05-06 Boshuai Cai , Guangshang Chen , Cenxi Yuan , Jianjun He

Theoretical estimates for the half lives of about 1700 isotopes of heavy elements with Z from 100 to 130 are tabulated using theoretical Q-values. The quantum mechanical tunneling probabilities are calculated within a WKB framework using…

Nuclear Theory · Physics 2008-11-26 P. Roy Chowdhury , C. Samanta , D. N. Basu

The $\alpha$- decay half-lives of the superheavy nuclei are systematically studied using different versions of proximity potential and a exact method to calculate Coulomb potential between spherical and deformed nuclei in the framework of…

Nuclear Theory · Physics 2019-08-07 O. N. Ghodsi , M. Hassanzad

It has been observed that decay rate for proton emission from $d_{3/2}$ single particle state is systematically quenched compared with the prediction of a one dimensional potential model although the same model successfully accounts for…

Nuclear Theory · Physics 2009-11-07 K. Hagino

Total reaction cross sections are predicted for proton scattering from various nuclei. A simple functional form has been used that reproduces the total reaction cross sections for the scattering of protons from (15) nuclei spanning the mass…

Nuclear Theory · Physics 2009-11-07 P. K. Deb , K. Amos

The process of two pion production in the electron-polarized proton scattering is investigated. In the Weizs\"acker-Williams approximation the differential spectral distributions and the spin-momentum correlations are considered. The spin…

High Energy Physics - Phenomenology · Physics 2013-04-02 A. I. Ahmadov , E. A. Kuraev , Yu. M. Bystritskiy

The ground-state spin and parity of a formed daughter in the radioactive Alpha-emitter is expected to influence the preformation probability of the Alpha and daughter clusters inside it. We investigate the Alpha and daughter preformation…

Nuclear Theory · Physics 2015-10-14 W. M. Seif , M. M. Botros , A. I. Refaie

A simple relation $(aZ_{c} + b)(Z_{d}/Q)^{1/2} + (cZ_{c} + d)$ of estimation of the half-life of cluster emission is further improved for cluster and $\alpha$-decays, separately, by incorporating isospin of parent nucleus as well as angular…

Nuclear Theory · Physics 2023-08-08 G. Saxena , A. Jain

The probability of $\alpha$ particle emission for some recently observed superheavy nuclei (SHN) are investigated. The $\alpha$-decay half lives of SHN are calculated in a quantum tunneling model with density dependent M3Y (DDM3Y) effective…

Nuclear Theory · Physics 2011-03-02 Partha Roy Chowdhury , G. Gangopadhyay , Abhijit Bhattacharyya

Two-proton ($2p$) radioactivity provides fundamental knowledge on the three-body decay mechanism and the residual nuclear interaction. In this work, we propose decay width formulae in the extended R-matrix framework for different decay…

Nuclear Theory · Physics 2023-02-22 Zhaozhan Zhang , Cenxi Yuan , Chong Qi , Boshuai Cai , Xinxing Xu

The decay rate of a triaxially-deformed proton emitter is calculated in a particle-rotor model, which is based on a deformed Woods-Saxon potential and includes a deformed spin-orbit interaction. The wave function of the $I=7/2^{-}$ ground…

Nuclear Theory · Physics 2009-11-10 Cary N. Davids , Henning Esbensen

We give results of microscopic calculations for the half-lives of various proton-rich nuclei in the mass region A=60-90, which are involved in the astrophysical rp-process, and which are needed as input parameters of numerical simulations…

Nuclear Theory · Physics 2009-11-11 P. Sarriguren , R. Alvarez-Rodriguez , E. Moya de Guerra

The emission of the 4.438-MeV gamma-ray line in proton inelastic scattering off 12C has been investigated in detail. For this, two independent descriptions of the correlated scattering and emission process have been developed, one for the…

Nuclear Experiment · Physics 2019-01-30 J. Kiener

We develop a new fully quantum method for determination of widths for nuclear decay by proton emission where multiple internal reflections of wave packet describing tunneling process inside proton--nucleus radial barrier are taken into…

Nuclear Theory · Physics 2010-02-01 Sergei P. Maydanyuk , Sergei V. Belchikov

The main observables of the rare two-proton emission process - half-life, total energy of the decay as well as energy and angular correlations between the emitted protons - have been measured for 48Ni and 45Fe in a recent experiment…

We investigate an idea, how to use analysis of the bremsstrahlung photons to study the internal structure of proton under nuclear reaction with nucleus. A new model is constructed to describe bremsstrahlung emission of photons which…

Nuclear Theory · Physics 2019-06-12 Sergei P. Maydanyuk , Peng-Ming Zhang , Li-Ping Zou