SMITH, Robin, BISHOP, Jack, WHELDON, Carl and KOKALOVA, Tzany (2019). Theoretical approaches to the 3α break-up of 12C. Journal of Physics: Conference Series, 1308 (1), 012021.
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Abstract
Abstract Two recent experiments have indicated that the break-up of the 12C Hoyle state is dominated by the sequential 8Be(g.s.) + α decay channel. The rare direct 3α decay was found to contribute with a branching ratio of less than 0.047% (95% C.L.). However, the ability of experimentalists to successfully disentangle these two competing decay channels relies on accurate theoretical predictions of how they each manifest in phase space distribution of the three break-up α-particles. The following paper reviews the current theoretical approaches to calculating the break-up of the Hoyle state and introduces a semi-classical WKB approach, which adequately reproduces the results of more sophisticated calculations. It is proposed that a more accurate upper limit on this branching ratio may be obtained if these new theoretical results are taken into account when analysing experimental data.
Item Type: | Article |
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Additional Information: | ** From IOP Publishing via Jisc Publications Router ** Licence for this article: http://creativecommons.org/licenses/by/3.0/ **Journal IDs: pissn 1742-6588; eissn 1742-6596 **Article IDs: publisher-id: jpcs_1308_1_012021; manuscript: j13081021 **History: open-access 01-08-2019; published 08-2019 |
Uncontrolled Keywords: | Paper |
Identification Number: | https://doi.org/10.1088/1742-6596/1308/1/012021 |
Page Range: | 012021 |
SWORD Depositor: | Helen Garner |
Depositing User: | Helen Garner |
Date Deposited: | 07 Oct 2019 13:24 |
Last Modified: | 18 Mar 2021 03:27 |
URI: | https://shura.shu.ac.uk/id/eprint/25184 |
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