Fission mode identification in the 180Hg region: derivative analysis approach
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866915875205939200 |
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| author | Melcom, D. T. Kattikat Tsekhanovich, I. Guezet, F. Andreyev, A. Nishio, K. |
| author_facet | Melcom, D. T. Kattikat Tsekhanovich, I. Guezet, F. Andreyev, A. Nishio, K. |
| contents | Experimental setups commonly used to study fission properties of nuclei in the exotic neutron-deficient 180Hg region are based on the time-of-flight technique for the fission-product identification. The nuclei of interest are created via fusion reactions at excitation energies of several tens of MeV and identified with limited mass resolution. The deduced final fission-fragment mass distributions are in general structureless, which makes the identification of fission modes, along with their properties, ambiguous and author-dependent. The standard functional-analysis technique applied to the simulated limited-resolution fusion-fission data appears to provide consistent results on the number and parameters of fission modes, even in cases of strong symmetric-mode dominance, i.e. for Gaussian-like fission-fragment mass distribution shapes. The method is shown to work also on data sets with limited statistics (real experimental data with integral of a few tens of thousands of events). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_16580 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Fission mode identification in the 180Hg region: derivative analysis approach Melcom, D. T. Kattikat Tsekhanovich, I. Guezet, F. Andreyev, A. Nishio, K. Nuclear Experiment Nuclear Theory Experimental setups commonly used to study fission properties of nuclei in the exotic neutron-deficient 180Hg region are based on the time-of-flight technique for the fission-product identification. The nuclei of interest are created via fusion reactions at excitation energies of several tens of MeV and identified with limited mass resolution. The deduced final fission-fragment mass distributions are in general structureless, which makes the identification of fission modes, along with their properties, ambiguous and author-dependent. The standard functional-analysis technique applied to the simulated limited-resolution fusion-fission data appears to provide consistent results on the number and parameters of fission modes, even in cases of strong symmetric-mode dominance, i.e. for Gaussian-like fission-fragment mass distribution shapes. The method is shown to work also on data sets with limited statistics (real experimental data with integral of a few tens of thousands of events). |
| title | Fission mode identification in the 180Hg region: derivative analysis approach |
| topic | Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2603.16580 |