Theoretical approaches to the 3α break-up of 12C

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Theoretical approaches to the 3α break-up of 12C. / Smith, Robin; Bishop, Jack; Wheldon, Carl; Kokalova, Tzany.

In: Journal of Physics: Conference Series, Vol. 1308, No. 1, 012021, 24.09.2019.

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@article{e5678239c1364d77a3f574336d3d3482,
title = "Theoretical approaches to the 3α break-up of 12C",
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.",
author = "Robin Smith and Jack Bishop and Carl Wheldon and Tzany Kokalova",
year = "2019",
month = sep,
day = "24",
doi = "10.1088/1742-6596/1308/1/012021",
language = "English",
volume = "1308",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing",
number = "1",
note = "42nd Symposium on Nuclear Physics 2019, SNP 2019 ; Conference date: 07-01-2019 Through 10-01-2019",

}

RIS

TY - JOUR

T1 - Theoretical approaches to the 3α break-up of 12C

AU - Smith, Robin

AU - Bishop, Jack

AU - Wheldon, Carl

AU - Kokalova, Tzany

PY - 2019/9/24

Y1 - 2019/9/24

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85073747315&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1308/1/012021

DO - 10.1088/1742-6596/1308/1/012021

M3 - Conference article

AN - SCOPUS:85073747315

VL - 1308

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012021

T2 - 42nd Symposium on Nuclear Physics 2019, SNP 2019

Y2 - 7 January 2019 through 10 January 2019

ER -