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The potential barrier impeding the spontaneous emission of protons in the proton radioactive nuclei is calculated as the sum of nuclear, Coulomb and centrifugal contributions. The nuclear part of the proton-nucleus interaction potential is…

Nuclear Theory · Physics 2015-03-19 T. R. Routray , Abhishek Mishra , S. K. Tripathy , B. Behera , D. N. Basu

The half lives of proton radioactivity of proton emitters are investigated theoretically. Proton-nucleus interaction potentials are obtained by folding the densities of the daughter nuclei with a finite range effective nucleon-nucleon…

Nuclear Theory · Physics 2012-06-08 T. R. Routray , S. K. Tripathy , B. B. Dash , B. Behera , D. N. Basu

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

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

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

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

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

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

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

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

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

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

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 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

In this work, we systematically study the two-proton($2p$) radioactivity half-lives using the two-potential approach while the nuclear potential is obtained by using Skyrme-Hartree-Fock approach with the Skyrme effective interaction of…

Nuclear Theory · Physics 2021-12-22 Xiao Pan , You Tian Zou , Hong Ming Liu , Biao He , Xiao Hua Li , Xi Jun Wu , Zhen Zhang

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

In this study, a phenomenological model is proposed based on Wentzel-Kramers-Brillouin (WKB) theory and applied to investigate the two-proton ($2p$) radioactive half-lives of nuclei near or beyond the proton drip line. The total…

Nuclear Theory · Physics 2021-10-27 Y. T. Zou , X. Pan , X. H. Li , H. M. Liu , X. J. Wu , B. He

The K-electron capture half-life of $^{123}$Te has been recently measured to be $t^K_{exp}=2.4\times 10^{19}$ yr, and constitutes the longest half-life ever measured in a single $\beta$-transition of any nuclear species. We have calculated…

Nuclear Theory · Physics 2009-10-30 M. Bianchetti , M. R. Quaglia , G. Colo` , P. M. Pizzochero , R. A. Broglia , P. F. Bortignon

We have conducted a comprehensive and systematic study of the proton radioactivity and $\alpha$-decay half-lives of neutron-deficient nuclei. This investigation involved the utilization of various Proximity potentials and also considered…

Nuclear Theory · Physics 2024-04-09 A. Adel , Karim H. Mahmoud , Haitham A. Taha

The alpha decay half-lives of recently synthesized superheavy nuclei (SHN) are calculated by applying a new approach which estimates them with the help of their neighbors based on some simple formulas. The estimated half-life values are in…

Nuclear Theory · Physics 2011-11-03 Jianmin Dong , Wei Zuo , Werner Scheid
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