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Half-life of proton radioactivity of spherical proton emitters is studied within the scheme of covariant density functional (CDF) theory, and for the first time the potential barrier that prevents the emitted proton is extracted with the…

Nuclear Theory · Physics 2014-11-26 Qiang Zhao , Jian Min Dong , Jun Ling Song , Wen Hui Long

In the present work we systematically study the half--lives of proton radioactivity for spherical proton emitters with ${Z\ge 69}$ based on two--potential approach. While the nuclear potential of the emitted proton--daughter nucleus is…

Nuclear Theory · Physics 2021-11-24 Jiu-Long Chen , Xiao-Hua Li , Xi-Jun Wu , Peng-Cheng Chu , Biao He

In this work we present a systematic study of the proton radioactivity half-lives of spherical proton emitters within the Coulomb and proximity potential model. We investigate 28 different versions of the proximity potential formalisms…

Nuclear Theory · Physics 2019-05-09 Jun-Gang Deng , Xiao-Hua Li , Jiu-Long Chen , Jun-Hao Cheng , Xi-Jun Wu

Half life values for proton radioactivity in nuclei have been calculated in the WKB approximation. The microscopic proton-nucleus potential has been obtained by folding the densities of daughter nuclei with two microscopic NN interactions,…

Nuclear Theory · Physics 2008-11-26 Madhubrata Bhattacharya , G. Gangopadhyay

The proton radioactivity half-lives of spherical proton emitters are investigated theoretically. The potential barriers preventing the emission of protons are determined in the quasimolecular shape path within a generalized liquid drop…

Nuclear Theory · Physics 2009-08-12 J. M. Dong , H. F. Zhang , G. Royer

In the present work, we systematically study the proton radioactivity half-lives of 33 spherical nuclei based on the relationship between the Skyrme parameters and the macroscopic quantities of nuclear matter. Using the two-potential…

Nuclear Theory · Physics 2022-10-05 Jun-Hao Cheng , Zhen Zhang , Xi-Jun Wu , Peng-Cheng Chu , Xiao-Hua Li

In the Coulomb and Proximity Potential Model (CPPM) framework, we have investigated the cluster radioactivity and alpha decay half-lives of superheavy nuclei. We study 22 different versions of proximity potential forms that have been…

Nuclear Theory · Physics 2025-03-17 Xuanpeng Xiao , Panpan Qi , Gongming Yu , Haitao Yang , Qiang Hu

Proton radioactivity is an important and common process of the natural radioactivity of proton-rich nuclei. In our previous work [J. H. Cheng et al., Nucl. Rhys. A 997, 121717 (2020)], we systematically studied the proton radioactivity…

Nuclear Theory · Physics 2020-10-27 Jun-Hao Cheng , Xiao Pan , You-Tian Zou , Xiao-Hua Li , Zhen Zhang , Peng-Cheng Chu

The proton radioactivity lifetimes of spherical proton emitters from the ground and the isomeric states are calculated using the microscopic nucleon-nucleus interaction potentials. The daughter nuclei density distributions are folded with a…

Nuclear Theory · Physics 2007-05-23 P. Roy Chowdhury , C. Samanta , D. N. Basu

In the present work we systematically study the half--lives of proton radioactivity for $51 \leq Z \leq 83$ nuclei based on the Gamow--like model with a screened electrostatic barrier. In this model there are two parameters while…

Nuclear Theory · Physics 2019-05-09 Jiu-Long Chen , Xiao-Hua Li , Jun-Hao Cheng , Jun-Gang Deng , Xi-Jun Wu

Proton radioactivity has been investigated using the effective liquid drop model with varying mass asymmetry shape and effective inertial coefficient. An effective nuclear radius constant formula replaces the old empirical one in the…

Nuclear Theory · Physics 2015-06-22 Zong-Qiang Sheng , Liang-Ping Shu , Guang-Wei Fan , Ying Msng , Jian-Fa Qian

Half lives of the decays of spherical nuclei away from proton drip line by proton emissions are estimated theoretically. The quantum mechanical tunneling probability is calculated within the WKB approximation. Microscopic proton-nucleus…

Nuclear Theory · Physics 2007-05-23 D. N. Basu , P. Roy Chowdhury , C. Samanta

In this paper, we compare the RMF theory and the model of deformed oscillator shells (DOS) in description of the quantum properties of the bound states of the spherically symmetric light nuclei. We obtain an explicit analytical relation…

Nuclear Theory · Physics 2016-06-06 Sergei P. Maydanyuk , Peng-Ming Zhang , Ahmed Bakry

In the present work we systematically study $\mathcal{\alpha}$ decay half-lives of $Z>51$ nuclei using the modified Gamow-like model which includes the effects of the centrifugal potential and electrostatic shielding. For the case of…

Nuclear Theory · Physics 2019-05-14 Jun-Hao Cheng , Jiu-Long Chen , Jun-Gang Deng , Xi-Jun Wu , Xiao-Hua Li , Peng-Cheng Chu

In the present work, we systematically study the spectroscopic factor of proton radioactivity ($S_p$) with $A>100$ using the deformed two-potential approach (D-TPA). It is found that there is a link between the quadrupole deformation…

Nuclear Theory · Physics 2024-03-08 Dong-Meng Zhang , Lin-Jing Qi , Hai-Feng Gui , Song Luo , Biao He , Xi-Jun Wu , Xiao-Hua Li

Refined calculations of the radial mismatch correction, $\delta_{C2}$, to superallowed $0^+\rightarrow0^+$ nuclear $\beta$ decay are performed using the shell model with realistic Woods-Saxon radial wave functions. Two important…

Nuclear Theory · Physics 2025-08-26 L. Xayavong , N. A. Smirnova , F. Nowacki

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

The neutron and proton scattering with either deuteron or stable alpha particle can be modeled as a two particle system. In this paper, using Morse function as reference potential, inverse potentials have been computationally constructed…

Nuclear Theory · Physics 2022-09-27 Lalit Kumar , Shikha Awasthi , Anil Khachi , O. S. K. S Sastri

Half-lives of proton emission for Z$\ge$51 nuclei are calculated within a simple analytical model based on the WKB approximation for the barrier penetration probability which includes the centrifugal and overlapping effects besides the…

Nuclear Theory · Physics 2017-09-13 R. Budaca , A. I. Budaca

The full relaxed-density potential between spherical nuclei is considered as a sum of the macroscopic and shell-correction contributions. The macroscopic part of the potential is related to a nucleus-nucleus potential obtained in the…

Nuclear Theory · Physics 2015-06-23 V. Yu. Denisov
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