Spontaneous double alpha decay: First experimental limit and prospects of investigation
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arXiv
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| Format: | Preprint |
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2021
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| _version_ | 1866929362586042368 |
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| author | Tretyak, V. I. |
| author_facet | Tretyak, V. I. |
| contents | Nuclear decays with simultaneous emission of two alpha particles are energetically possible for a number of nuclides. Prospects of searching for such kind of decay for nuclides present in the natural isotopic composition of elements are discussed here. The first experimental limit on half-life for 2alpha decay is set for 209Bi as T1/2 > 2.9e20 y at 90% C.L., using the data of work [P. de Marcillac et al., Nature 422 (2003) 876]. Theoretical T1/2 estimations for the process are also given. Using these values, which are on the level of 1e33 y or more, one can conclude that the prospects of experimental observation of 2alpha decay are very pessimistic. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2102_12005 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Spontaneous double alpha decay: First experimental limit and prospects of investigation Tretyak, V. I. Nuclear Experiment Nuclear Theory Nuclear decays with simultaneous emission of two alpha particles are energetically possible for a number of nuclides. Prospects of searching for such kind of decay for nuclides present in the natural isotopic composition of elements are discussed here. The first experimental limit on half-life for 2alpha decay is set for 209Bi as T1/2 > 2.9e20 y at 90% C.L., using the data of work [P. de Marcillac et al., Nature 422 (2003) 876]. Theoretical T1/2 estimations for the process are also given. Using these values, which are on the level of 1e33 y or more, one can conclude that the prospects of experimental observation of 2alpha decay are very pessimistic. |
| title | Spontaneous double alpha decay: First experimental limit and prospects of investigation |
| topic | Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2102.12005 |