α-Clustering in atomic nuclei from first principles with statistical learning and the Hoyle state character
© 2022. The Author(s)..
A long-standing crucial question with atomic nuclei is whether or not α clustering occurs there. An α particle (helium-4 nucleus) comprises two protons and two neutrons, and may be the building block of some nuclei. This is a very beautiful and fascinating idea, and is indeed plausible because the α particle is particularly stable with a large binding energy. However, direct experimental evidence has never been provided. Here, we show whether and how α(-like) objects emerge in atomic nuclei, by means of state-of-the-art quantum many-body simulations formulated from first principles, utilizing supercomputers including K/Fugaku. The obtained physical quantities exhibit agreement with experimental data. The appearance and variation of the α clustering are shown by utilizing density profiles for the nuclei beryllium-8, -10 and carbon-12. With additional insight by statistical learning, an unexpected crossover picture is presented for the Hoyle state, a critical gateway to the birth of life.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:13 |
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| Enthalten in: |
Nature communications - 13(2022), 1 vom: 27. Apr., Seite 2234 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Otsuka, T [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 16.07.2022 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1038/s41467-022-29582-0 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM340065931 |
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| 520 | |a © 2022. The Author(s). | ||
| 520 | |a A long-standing crucial question with atomic nuclei is whether or not α clustering occurs there. An α particle (helium-4 nucleus) comprises two protons and two neutrons, and may be the building block of some nuclei. This is a very beautiful and fascinating idea, and is indeed plausible because the α particle is particularly stable with a large binding energy. However, direct experimental evidence has never been provided. Here, we show whether and how α(-like) objects emerge in atomic nuclei, by means of state-of-the-art quantum many-body simulations formulated from first principles, utilizing supercomputers including K/Fugaku. The obtained physical quantities exhibit agreement with experimental data. The appearance and variation of the α clustering are shown by utilizing density profiles for the nuclei beryllium-8, -10 and carbon-12. With additional insight by statistical learning, an unexpected crossover picture is presented for the Hoyle state, a critical gateway to the birth of life | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Yoshida, T |e verfasserin |4 aut | |
| 700 | 1 | |a Tsunoda, Y |e verfasserin |4 aut | |
| 700 | 1 | |a Shimizu, N |e verfasserin |4 aut | |
| 700 | 1 | |a Itagaki, N |e verfasserin |4 aut | |
| 700 | 1 | |a Utsuno, Y |e verfasserin |4 aut | |
| 700 | 1 | |a Vary, J |e verfasserin |4 aut | |
| 700 | 1 | |a Maris, P |e verfasserin |4 aut | |
| 700 | 1 | |a Ueno, H |e verfasserin |4 aut | |
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