| Thème(s) : |
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Physique/Physique Nucléaire Expérimentale
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| Titre : |
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High-precision branching-ratio measurement for the superallowed β+ emitter $^{26}$Al$^{m}$ |
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| Auteur : |
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P. Finlay, G.C. Ball, J.R. Leslie, C.E. Svensson, C. Andreoiu, R.A.E. Austin, D. Bandyopadhyay, D.S. Cross, G. Demand, M. Djongolov, S. Ettenauer, P.E. Garrett, K.L. Green, G.F. Grinyer1, G. Hackman, K.G. Leach, C.J. Pearson, A.A. Phillips, E.T. Rand, C.S. Sumithrarachchi, S. Triambak, S.J. Williams |
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| Laboratoire : |
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| Résumé : |
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A high-precision branching-ratio measurement for the superallowed β + emitter 26Alm was performed at the TRIUMF-ISAC radioactive ion beam facility. An upper limit of 12 ppm at 90% confidence level was found for the second forbidden β + decay of 26Alm to the 2+ 1 state at 1809 keV in 26Mg. An inclusive upper limit of 15 ppm at 90% confidence level was found when considering all possible nonanalog β + /EC decay branches of 26Alm, resulting in a superallowed branching ratio of 100.0000+0 −0.0015%. |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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2012 |
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| Nom du périodique : |
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| Physical Review C (Phys. Rev. C) |
| Publisher |
American Physical Society |
| ISSN |
0556-2813 (eISSN : 1089-490X) |
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| Volume : |
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85 |
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| Page/Article : |
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055501 |
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| Identifiant local : |
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GANIL 2012-067 A |
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| Classification PACS : |
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23.20.Lv, 23.40.−s, 24.80.+y, 27.30.+t |
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