Predictions of the alpha-decay half-lives of even–even superheavy nuclei using modified Gamow-like model
| dc.contributor.author | O K Azeez | |
| dc.contributor.author | W A Yahya | |
| dc.contributor.author | A A Saeed | |
| dc.date.accessioned | 2024-04-29T11:35:30Z | |
| dc.date.available | 2024-04-29T11:35:30Z | |
| dc.date.issued | 2022-04-14 | |
| dc.description | predict | |
| dc.description.abstract | <jats:title>Abstract</jats:title> <jats:p> <jats:italic>α</jats:italic>-decay half-lives of superheavy nuclei have been studied using modified Gamow-like model and improved empirical formulas. The empirical formulas used in the study are Viola-Seaborg semi-empirical formula, universal decay law (UDL), Denisov-Khudenko formula (DK), Royer formula, Wang formula, AKRE formula, and new Ren B (NRB) formula. New values of the adjustable parameters in the modified Gamow-like model have been obtained using a least square fit scheme and input data from the NUBASE2020 database. We found that only two adjustable parameters are sufficient to describe the <jats:italic>α</jats:italic>-decay half-lives of heavy and superheavy nuclei. We also obtained new coefficients for the seven empirical formulas using similar procedure. The modified Gamow-like model (MGLM) and improved empirical formulas are then used to calculate the <jats:italic>α</jats:italic>-decay half-lives of measured superheavy nuclei with <jats:italic>Z</jats:italic> = 100–118. The calculated root mean square errors indicate that the Royer, DK, and AKRE formulas are the best three empirical formulas for evaluating the <jats:italic>α</jats:italic>-decay half-lives of the superheavy nuclei. The five best performing empirical formulas, together with the MGLM, are then used to predict alpha-decay half-lives of unmeasured even–even superheavy nuclei with <jats:italic>Z</jats:italic> = 120–126. The <jats:italic>Q</jats:italic> <jats:sub> <jats:italic>α</jats:italic> </jats:sub> values used for the predictions have been taken from the tabulated Weizs <jats:inline-formula> <jats:tex-math> <?CDATA $\ddot{a}$?> </jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mover accent="true"> <mml:mrow> <mml:mi>a</mml:mi> </mml:mrow> <mml:mrow> <mml:mo>̈</mml:mo> </mml:mrow> </mml:mover> </mml:math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="psac619dieqn1.gif" xlink:type="simple" /> </jats:inline-formula> cker-Skyrme-4 + RBF (WS4 + RBF) <jats:italic>Q</jats:italic> <jats:sub> <jats:italic>α</jats:italic> </jats:sub> values. The theoretical calculations suggest that <jats:italic>N</jats:italic> = 184 is a possible magic number, which is in agreement with previous theoretical calculations.</jats:p> | |
| dc.description.sponsorship | No | |
| dc.identifier.doi | 10.1088/1402-4896/ac619d | |
| dc.identifier.issn | 0031-8949 | |
| dc.identifier.issn | 1402-4896 | |
| dc.identifier.uri | https://kwasuspace.kwasu.edu.ng/handle/123456789/1319 | |
| dc.relation.ispartof | Physica Scripta | |
| dc.title | Predictions of the alpha-decay half-lives of even–even superheavy nuclei using modified Gamow-like model | |
| dc.type | journal-article | |
| oaire.citation.issue | 5 | |
| oaire.citation.volume | 97 |