Adsley, P., Heine, M., Jenkins, D. G. orcid.org/0000-0001-9895-3341 et al. (14 more authors) (2022) Extending the Hoyle-State Paradigm to C 12 + C 12 Fusion. Physical Review Letters. 102701. ISSN 1079-7114
Abstract
Carbon burning is a key step in the evolution of massive stars, Type 1a supernovae and superbursts in x-ray binary systems. Determining the C12+C12 fusion cross section at relevant energies by extrapolation of direct measurements is challenging due to resonances at and below the Coulomb barrier. A study of the Mg24(α,α′)Mg24 reaction has identified several 0+ states in Mg24, close to the C12+C12 threshold, which predominantly decay to Ne20(ground state)+α. These states were not observed in Ne20(α,α0)Ne20 resonance scattering suggesting that they may have a dominant C12+C12 cluster structure. Given the very low angular momentum associated with sub-barrier fusion, these states may play a decisive role in C12+C12 fusion in analogy to the Hoyle state in helium burning. We present estimates of updated C12+C12 fusion reaction rates.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 American Physical Society. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Social Sciences (York) > Sociology (York) |
Depositing User: | Pure (York) |
Date Deposited: | 30 Sep 2022 10:10 |
Last Modified: | 14 Feb 2025 00:11 |
Published Version: | https://doi.org/10.1103/PhysRevLett.129.102701 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevLett.129.102701 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:191535 |
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Filename: PhysRevLett.129.102701.pdf
Description: Extending the Hoyle-State Paradigm to 12C + 12C Fusion