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title: "Nonlocality Effect in Alpha Decay of Heavy and Superheavy Nuclei • CBPF Index"
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**Physics Note****Published**

# **Nonlocality Effect in Alpha Decay of Heavy and Superheavy Nuclei**

**Emil de Lima Medeiros; N. Teruya; S. B. Duarte; O. A. P. Tavares**

08/02/2022

[**Download PDF **6.5 MB](https://index.cbpf.br/files/publicacao/6ad2a767639f62b11adbd5c3/pdf) [**Contact owner**](mailto:apub@cbpf.br?subject=Nonlocality%20Effect%20in%20Alpha%20Decay%20of%20Heavy%20and%20Superheavy%20Nuclei)

## **Publication details**

<dl>

<dt>Authors</dt>
<dd>Emil de Lima Medeiros; N. Teruya; S. B. Duarte; O. A. P. Tavares</dd>

<dt>Type</dt>
<dd>Physics Note</dd>

<dt>Status</dt>
<dd>Published</dd>

<dt>Publication date</dt>
<dd>02/08/2022</dd>

<dt>Description</dt>
<dd>Alpha decay half-life of heavy and superheavy nuclei has been investigated using a potential barrier penetration model that adapts semiclassical WKB calculations to incorporate a coordinate-dependent effective mass for the alpha particle. This effect is a consequence of a dynamic property of nonlocality in the particle-nucleus interaction, as implemented in the barrier tunneling calculations of Ref. \cite{Pemitter}. Calculations have been performed for a recent set of experimental data of 255 alpha-emitting nuclides, all selected with angular momentum $\ell = 0$ experimentally assigned. Results show a good agreement when compared to experimental half-life data, obtaining a standard deviation $\sigma=0.306$, and fully satisfying the universal NUP and UDL systematics of alpha decay. Additionally, the present model has been applied to make half-life predictions for thirty-four possible, new alpha decay cases.</dd>

<dt>Year</dt>
<dd>2022</dd>

<dt>Number</dt>
<dd>CBPF-NF-005/22</dd>

<dt>Linked to a thesis</dt>
<dd>No</dd>

<dt>Linked to a grant</dt>
<dd>No</dd>

</dl>

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