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First in-beam γ-ray spectroscopy study of Al24 and its implications for the astrophysical Mg23(p,γ)Al24 reaction rate in ONe novae

Lotay, G, Woods, PJ, Seweryniak, D, Carpenter, MP, Hoteling, N, Janssens, RVF, Jenkins, DG, Lauritsen, T, Lister, CJ, Robinson, A and Zhu, S (2008) First in-beam γ-ray spectroscopy study of Al24 and its implications for the astrophysical Mg23(p,γ)Al24 reaction rate in ONe novae Physical Review C - Nuclear Physics, 77 (4).

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Abstract

The first in-beam γ-ray spectroscopy study of Al24 is presented. A complete level structure of Al24 incorporating all states below the proton-emission threshold, has been constructed. The first excited state above the proton threshold has also been identified as a 3+ state at 2345.1 ± 1.4 keV. This state, corresponding to a resonance energy of 473 ± 3 keV, has been suggested to be the dominant resonance contributing to the Mg23(p,γ)Al24 stellar reaction rate. The improved precision of the level energy and unambiguous assignment of the state has reduced the uncertainty of the Mg23(p,γ)Al24 stellar reaction rate, which constrains the production of A>20 nuclei in ONe novae. © 2008 The American Physical Society.

Item Type: Article
Authors :
NameEmailORCID
Lotay, Gg.lotay@surrey.ac.ukUNSPECIFIED
Woods, PJUNSPECIFIEDUNSPECIFIED
Seweryniak, DUNSPECIFIEDUNSPECIFIED
Carpenter, MPUNSPECIFIEDUNSPECIFIED
Hoteling, NUNSPECIFIEDUNSPECIFIED
Janssens, RVFUNSPECIFIEDUNSPECIFIED
Jenkins, DGUNSPECIFIEDUNSPECIFIED
Lauritsen, TUNSPECIFIEDUNSPECIFIED
Lister, CJUNSPECIFIEDUNSPECIFIED
Robinson, AUNSPECIFIEDUNSPECIFIED
Zhu, SUNSPECIFIEDUNSPECIFIED
Date : 28 April 2008
Identification Number : https://doi.org/10.1103/PhysRevC.77.042802
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:40
Last Modified : 17 May 2017 15:12
URI: http://epubs.surrey.ac.uk/id/eprint/840069

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