A systematic study on the a-decay half-lives of nuclei in the range 93≤Z≤118 is performed by employing various versions of proximity potentials.To obtain more reliable results,deformation terms are included up to he...A systematic study on the a-decay half-lives of nuclei in the range 93≤Z≤118 is performed by employing various versions of proximity potentials.To obtain more reliable results,deformation terms are included up to hexadecapole(β_(4))in the spherical-deformed nuclear and Coulomb interaction potentials.First,the favored a-de-cay processes in this region are categorized as even-even,odd A,and odd-odd nuclei.Second,they are grouped into two transitions:ground state to ground state and ground state to isomeric states.Owing to the comparison of their root-mean-square deviations(RMSD's),Bassll and Ngo80 have the lowest values and better reproduce experimental data.Moreover,by considering preformation probability within the cluster formation model,the results validate the significant reduction in root-mean-square deviations obtained for different versions of proximity.Hence,the deviation between the calculated and experimental data is detracted.展开更多
文摘A systematic study on the a-decay half-lives of nuclei in the range 93≤Z≤118 is performed by employing various versions of proximity potentials.To obtain more reliable results,deformation terms are included up to hexadecapole(β_(4))in the spherical-deformed nuclear and Coulomb interaction potentials.First,the favored a-de-cay processes in this region are categorized as even-even,odd A,and odd-odd nuclei.Second,they are grouped into two transitions:ground state to ground state and ground state to isomeric states.Owing to the comparison of their root-mean-square deviations(RMSD's),Bassll and Ngo80 have the lowest values and better reproduce experimental data.Moreover,by considering preformation probability within the cluster formation model,the results validate the significant reduction in root-mean-square deviations obtained for different versions of proximity.Hence,the deviation between the calculated and experimental data is detracted.
