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Alpha-decay of lanthanide isotopes: Accurate half-life evaluation for 146Sm and 149Sm.

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Title: Alpha-decay of lanthanide isotopes: Accurate half-life evaluation for 146Sm and 149Sm.
Authors: Tavares, O. A. P.1 (AUTHOR), Medeiros, E. L.1 (AUTHOR) emildelimamedeiros@gmail.com
Source: Modern Physics Letters A. 11/30/2026, Vol. 41 Issue 36, p1-12. 12p.
Subjects: Alpha decay, Samarium, Radioactive decay, Half-life (Nuclear physics), Radioactive dating, Radioisotopes, Rare earth metals
Abstract: A systematic analysis of α -decay half-lives of radioactive lanthanide isotopes, T 1 ∕ 2 α , has been developed which allows one to obtain an accurate and reliable T 1 ∕ 2 α -value of (1 0 3. 4 ± 5. 3) Ma for the extinct 1 4 6 Sm isotope, and to predict a T 1 ∕ 2 α -value of (1. 8 ± 0. 2) × 1 0 1 8 a for the yet unknown alpha radioactivity of 1 4 9 Sm isotope. [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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  Data: Alpha-decay of lanthanide isotopes: Accurate half-life evaluation for 146Sm and 149Sm.
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  Data: <searchLink fieldCode="JN" term="%22Modern+Physics+Letters+A%22">Modern Physics Letters A</searchLink>. 11/30/2026, Vol. 41 Issue 36, p1-12. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Alpha+decay%22">Alpha decay</searchLink><br /><searchLink fieldCode="DE" term="%22Samarium%22">Samarium</searchLink><br /><searchLink fieldCode="DE" term="%22Radioactive+decay%22">Radioactive decay</searchLink><br /><searchLink fieldCode="DE" term="%22Half-life+%28Nuclear+physics%29%22">Half-life (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Radioactive+dating%22">Radioactive dating</searchLink><br /><searchLink fieldCode="DE" term="%22Radioisotopes%22">Radioisotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Rare+earth+metals%22">Rare earth metals</searchLink>
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  Data: A systematic analysis of α -decay half-lives of radioactive lanthanide isotopes, T 1 ∕ 2 α , has been developed which allows one to obtain an accurate and reliable T 1 ∕ 2 α -value of (1 0 3. 4 ± 5. 3) Ma for the extinct 1 4 6 Sm isotope, and to predict a T 1 ∕ 2 α -value of (1. 8 ± 0. 2) × 1 0 1 8 a for the yet unknown alpha radioactivity of 1 4 9 Sm isotope. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  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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        Value: 10.1142/S0217732326501956
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        Text: English
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        PageCount: 12
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    Subjects:
      – SubjectFull: Alpha decay
        Type: general
      – SubjectFull: Samarium
        Type: general
      – SubjectFull: Radioactive decay
        Type: general
      – SubjectFull: Half-life (Nuclear physics)
        Type: general
      – SubjectFull: Radioactive dating
        Type: general
      – SubjectFull: Radioisotopes
        Type: general
      – SubjectFull: Rare earth metals
        Type: general
    Titles:
      – TitleFull: Alpha-decay of lanthanide isotopes: Accurate half-life evaluation for 146Sm and 149Sm.
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              Text: 11/30/2026
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              Y: 2026
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