Стан Хойла ядра 12C в реакції 14N(γ, np)3α
The distributions over the excitation energies of the systems of two and three α-particles in the 14N(γ, np)3α reaction have been analyzed. In the 2α-particle distribution, a channel of the 8Be nucleus formation in the ground state is revealed and resolved. For the events corresponding to this chann...
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| Date: | 2023 |
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| Main Author: | |
| Format: | Article |
| Language: | English Ukrainian |
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Publishing house "Academperiodika"
2023
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| Online Access: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2022593 |
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| Journal Title: | Ukrainian Journal of Physics |
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Ukrainian Journal of Physics| _version_ | 1863131482750451712 |
|---|---|
| author | Afanasiev, S.N. |
| author_facet | Afanasiev, S.N. |
| author_sort | Afanasiev, S.N. |
| baseUrl_str | https://ujp.bitp.kiev.ua/index.php/ujp/oai |
| collection | OJS |
| datestamp_date | 2023-01-23T12:23:23Z |
| description | The distributions over the excitation energies of the systems of two and three α-particles in the 14N(γ, np)3α reaction have been analyzed. In the 2α-particle distribution, a channel of the 8Be nucleus formation in the ground state is revealed and resolved. For the events corresponding to this channel, a distribution of events over the excitation energy of three α-particles is plotted. A maximum is found in the near-threshold 3α-particle region, which can correspond to the Hoyle state of 12C nucleus. Events corresponding to the partial channel of the 14N(γ, np)12C*(0+) reaction with the subsequent two-particle decay 12C* → α + 8Be(0+) are separated, and the energy and angular distributions of α-particles at each decay stage are analyzed. The channel of 12C nucleus formation in the Hoyle state in photonuclear reactions has not been identified earlier. |
| doi_str_mv | 10.15407/ujpe67.11.776 |
| first_indexed | 2025-10-02T01:18:47Z |
| format | Article |
| id | ujp2-article-2022593 |
| institution | Ukrainian Journal of Physics |
| keywords_txt_mv | keywords |
| language | English Ukrainian |
| last_indexed | 2025-10-02T01:18:47Z |
| publishDate | 2023 |
| publisher | Publishing house "Academperiodika" |
| record_format | ojs |
| spelling | ujp2-article-20225932023-01-23T12:23:23Z The Hoyle State of 12C Nucleus in the 14N(γ, np)3α Reaction Стан Хойла ядра 12C в реакції 14N(γ, np)3α Afanasiev, S.N. photonuclear reactions 4 ground state of 8Be nucleus Hoyle state of 12C nucleus фотоядернi реакцiї 4 основний стан ядра 8Ве стан Хойла ядра 12C The distributions over the excitation energies of the systems of two and three α-particles in the 14N(γ, np)3α reaction have been analyzed. In the 2α-particle distribution, a channel of the 8Be nucleus formation in the ground state is revealed and resolved. For the events corresponding to this channel, a distribution of events over the excitation energy of three α-particles is plotted. A maximum is found in the near-threshold 3α-particle region, which can correspond to the Hoyle state of 12C nucleus. Events corresponding to the partial channel of the 14N(γ, np)12C*(0+) reaction with the subsequent two-particle decay 12C* → α + 8Be(0+) are separated, and the energy and angular distributions of α-particles at each decay stage are analyzed. The channel of 12C nucleus formation in the Hoyle state in photonuclear reactions has not been identified earlier. Для реакцiї 14N(γ, np)3α виконано аналiз розподiлiв за енергiєю збудження 2x i 3x α-частинок. В 2x α-частинковому розподiлi виявлено i видiлено канал утворення основного стану ядра 8Ве. Для подiй, що вiдповiдають цьому каналу, побудовано розподiл за енергiєю збудження трьох α-частинок. У бiляпороговiй 3α-частинковiй областi виявлено максимум, який може вiдповiдати стану Хойла ядра 12C. Видiлено подiї, що вiдповiдають парцiальному каналу реакцiї 14N(γ, np)12C*(0+) з наступним двочастинковим розпадом 12C* на α + 8Ве(0+), i виконано аналiз енергетичних i кутових розподiлiв α-частинок на кожному етапi розпаду. Ранiше у фотоядерних реакцiях канал утворення стану Хойла ядра 12C не видiлявся. Publishing house "Academperiodika" 2023-01-23 Article Article Original Research Article (peer-reviewed) Оригінальна дослідницька стаття (з незалежним рецензуванням) application/pdf application/pdf https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2022593 10.15407/ujpe67.11.776 Ukrainian Journal of Physics; Vol. 67 No. 11 (2022); 776 Український фізичний журнал; Том 67 № 11 (2022); 776 2071-0194 2071-0186 10.15407/ujpe67.11 en uk https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2022593/2917 https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2022593/2918 Copyright (c) 2023 Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine |
| spellingShingle | фотоядернi реакцiї 4 основний стан ядра 8Ве стан Хойла ядра 12C Afanasiev, S.N. Стан Хойла ядра 12C в реакції 14N(γ, np)3α |
| title | Стан Хойла ядра 12C в реакції 14N(γ, np)3α |
| title_alt | The Hoyle State of 12C Nucleus in the 14N(γ, np)3α Reaction |
| title_full | Стан Хойла ядра 12C в реакції 14N(γ, np)3α |
| title_fullStr | Стан Хойла ядра 12C в реакції 14N(γ, np)3α |
| title_full_unstemmed | Стан Хойла ядра 12C в реакції 14N(γ, np)3α |
| title_short | Стан Хойла ядра 12C в реакції 14N(γ, np)3α |
| title_sort | стан хойла ядра 12c в реакції 14n(γ, np)3α |
| topic | фотоядернi реакцiї 4 основний стан ядра 8Ве стан Хойла ядра 12C |
| topic_facet | photonuclear reactions 4 ground state of 8Be nucleus Hoyle state of 12C nucleus фотоядернi реакцiї 4 основний стан ядра 8Ве стан Хойла ядра 12C |
| url | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2022593 |
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