Empirical estimation of penetration probability in actinide nuclei using experimental α-decay half-lives.
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| Title: | Empirical estimation of penetration probability in actinide nuclei using experimental α-decay half-lives. |
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| Authors: | Susheela, R. S.1 (AUTHOR) susheelarsphy@gmail.com, Sowmya, N.2 (AUTHOR) sowmyaprakash8@gmail.com, Manjunatha, H. C.3 (AUTHOR) manjunathhc@rediffmail.com, Shubha, S.4 (AUTHOR) shubhas@rvce.edu.in |
| Source: | Modern Physics Letters A. 8/30/2026, Vol. 41 Issue 26, p1-18. 18p. |
| Subjects: | Alpha decay, Half-life (Nuclear physics), Actinide elements, Quantum tunneling, Statistical models, Nuclear physics |
| Abstract: | Penetration is a fundamental concept in alpha decay (α -decay), as it quantifies the likelihood of an α -particle tunneling through the nuclear potential barrier, a quantum mechanical process essential for decay to occur. In this study, we analyzed experimentally available α -decay half-lives of actinide nuclei within the atomic number range 8 9 ≤ Z ≤ 1 0 3 , considering a total of 158 alpha-emitting nuclei. To describe the tunneling behavior, we proposed a semi-empirical formula for penetration probability P expressed as a function of Z n Q − 1 / 2 , consistent with the Geiger–Nuttall (GN) law. This approach allows decay properties to be estimated using only nuclear charge and decay energy. To improve accuracy, nuclei were classified into even–even, even–odd, odd–even, and odd–odd categories, and the optimized exponent n was determined separately for each group to maximize the coefficient of determination ( R 2 ). The resulting empirical relations reproduce experimental α -decay half-lives with χ 2 and σ -values of 0.266 and 0.871, respectively. Furthermore, we predicted α -decay half-lives for unmeasured actinide isotopes and compared them with results from established semi-empirical models (UNIV, UDL, NRDX, VSS, Royer, SemFIS, Horoi, and Dong). The proposed model shows excellent agreement, providing a simple yet reliable framework for α -decay half-life estimation, particularly in unpredicted isotopes in the atomic number region 8 9 ≤ Z ≤ 1 0 3. [ABSTRACT FROM AUTHOR] |
| Copyright of Modern Physics Letters A is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Empirical estimation of penetration probability in actinide nuclei using experimental α-decay half-lives. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Susheela%2C+R%2E+S%2E%22">Susheela, R. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> susheelarsphy@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Sowmya%2C+N%2E%22">Sowmya, N.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> sowmyaprakash8@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Manjunatha%2C+H%2E+C%2E%22">Manjunatha, H. C.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> manjunathhc@rediffmail.com</i><br /><searchLink fieldCode="AR" term="%22Shubha%2C+S%2E%22">Shubha, S.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> shubhas@rvce.edu.in</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Modern+Physics+Letters+A%22">Modern Physics Letters A</searchLink>. 8/30/2026, Vol. 41 Issue 26, p1-18. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Alpha+decay%22">Alpha decay</searchLink><br /><searchLink fieldCode="DE" term="%22Half-life+%28Nuclear+physics%29%22">Half-life (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Actinide+elements%22">Actinide elements</searchLink><br /><searchLink fieldCode="DE" term="%22Quantum+tunneling%22">Quantum tunneling</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+models%22">Statistical models</searchLink><br /><searchLink fieldCode="DE" term="%22Nuclear+physics%22">Nuclear physics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Penetration is a fundamental concept in alpha decay (α -decay), as it quantifies the likelihood of an α -particle tunneling through the nuclear potential barrier, a quantum mechanical process essential for decay to occur. In this study, we analyzed experimentally available α -decay half-lives of actinide nuclei within the atomic number range 8 9 ≤ Z ≤ 1 0 3 , considering a total of 158 alpha-emitting nuclei. To describe the tunneling behavior, we proposed a semi-empirical formula for penetration probability P expressed as a function of Z n Q − 1 / 2 , consistent with the Geiger–Nuttall (GN) law. This approach allows decay properties to be estimated using only nuclear charge and decay energy. To improve accuracy, nuclei were classified into even–even, even–odd, odd–even, and odd–odd categories, and the optimized exponent n was determined separately for each group to maximize the coefficient of determination ( R 2 ). The resulting empirical relations reproduce experimental α -decay half-lives with χ 2 and σ -values of 0.266 and 0.871, respectively. Furthermore, we predicted α -decay half-lives for unmeasured actinide isotopes and compared them with results from established semi-empirical models (UNIV, UDL, NRDX, VSS, Royer, SemFIS, Horoi, and Dong). The proposed model shows excellent agreement, providing a simple yet reliable framework for α -decay half-life estimation, particularly in unpredicted isotopes in the atomic number region 8 9 ≤ Z ≤ 1 0 3. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Modern Physics Letters A is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1142/S0217732326501518 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 1 Subjects: – SubjectFull: Alpha decay Type: general – SubjectFull: Half-life (Nuclear physics) Type: general – SubjectFull: Actinide elements Type: general – SubjectFull: Quantum tunneling Type: general – SubjectFull: Statistical models Type: general – SubjectFull: Nuclear physics Type: general Titles: – TitleFull: Empirical estimation of penetration probability in actinide nuclei using experimental α-decay half-lives. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Susheela, R. S. – PersonEntity: Name: NameFull: Sowmya, N. – PersonEntity: Name: NameFull: Manjunatha, H. C. – PersonEntity: Name: NameFull: Shubha, S. IsPartOfRelationships: – BibEntity: Dates: – D: 30 M: 08 Text: 8/30/2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 02177323 Numbering: – Type: volume Value: 41 – Type: issue Value: 26 Titles: – TitleFull: Modern Physics Letters A Type: main |
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