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  Precise measurements of half-lives and branching ratios for the beta mirror transitions in the decay of Mg-23 and Si-27

Magron, C., Alfaurt, P., Blank, B., Daudin, L., Eronen, T., Gerbaux, M., et al. (2017). Precise measurements of half-lives and branching ratios for the beta mirror transitions in the decay of Mg-23 and Si-27. European Physical Journal A, 53(4): 77. doi:10.1140/epja/i2017-12271-0.

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Magron, C.1, Author
Alfaurt, Ph.1, Author
Blank, B.1, Author
Daudin, L.1, Author
Eronen, T.1, Author
Gerbaux, M.1, Author
Giovinazzo, J.1, Author
Gorelov, D.1, Author
Grevy, S.1, Author
Guerin, H.1, Author
Hakala, J.1, Author
Kolhinen, V. S.1, Author
Koponen, J.1, Author
Nieto, T. Kurtukian1, Author
Moore, I. D.1, Author
Penttila, H.1, Author
Pohjalainen, I.1, Author
Reinikainen, J.1, Author
Reponen, M.1, Author
Rinta-Antila, S.1, Author
Roche, M.1, Authorde Roubin, Antoine2, Author           Smirnova, N.1, AuthorThomas, B.1, AuthorVoss, A.1, AuthorXayavong, L.1, Author more..
Affiliations:
1external, ou_persistent22              
2Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              

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 MPINP: Präzisionsexperimente - Abteilung Blaum
 Abstract: Half-lives and branching ratios for the two mirror beta decays of Mg-23 and Si-27 have been measured at the University of Jyv " askyl " a with the IGISOL facility. The results obtained, T-1/2 = 11.303(3) s and T-1/2 = 4.112(2) s for the half-lives of Mg-23 and Si-27, respectively, are 7 and 8 times more precise than the averages of previous measurements. The values obtained for the super-allowed branching ratios of Mg-23 and Si-27 are B.R. = 92.18(8)% and B.R. = 99.74(2)%, respectively. The result for Mg-23 is three times more precise than the average of the previous measurements, while for Si-27 the precision has not been improved, the average of the previous measurements being already very precise. Isospin-symmetry-breaking corrections have been calculated for the two nuclei to determine the corrected Ft value.

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 Dates: 2017
 Publication Status: Published online
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 Rev. Type: -
 Identifiers: DOI: 10.1140/epja/i2017-12271-0
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Title: European Physical Journal A
  Other : Eur. Phys. J. A
Source Genre: Journal
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Publ. Info: Les Ulis, France : EDP Sciences
Pages: - Volume / Issue: 53 (4) Sequence Number: 77 Start / End Page: - Identifier: ISSN: 1434-6001
CoNE: https://pure.mpg.de/cone/journals/resource/954926989130