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Journal articles
High-precision branching-ratio measurement for the superallowed β+ emitter $^{26}$Al$^{m}$
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. Grinyer
1
G. Hackman
K.G. Leach
C.J. Pearson
A.A. Phillips
E.T. Rand
C.S. Sumithrarachchi
S. Triambak
S.J. Williams
S. Triambak
Author
S.J. Williams
Author
1
GANIL - Grand Accélérateur National d'Ions Lourds (Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5 - France)
- CNRS - Centre National de la Recherche Scientifique : UPR3266 (France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/GANIL (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
Abstract : 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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http://hal.in2p3.fr/in2p3-00702722
Contributor : Michel Lion <>
Submitted on : Thursday, May 31, 2012 - 11:06:38 AM
Last modification on : Thursday, February 1, 2018 - 1:25:41 AM
Contributor : Michel Lion <>
Submitted on : Thursday, May 31, 2012 - 11:06:38 AM
Last modification on : Thursday, February 1, 2018 - 1:25:41 AM
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- HAL Id : in2p3-00702722, version 1
- DOI : 10.1103/PhysRevC.85.055501
Citation
P. Finlay, G.C. Ball, J.R. Leslie, C.E. Svensson, C. Andreoiu, et al.. High-precision branching-ratio measurement for the superallowed β+ emitter $^{26}$Al$^{m}$. Physical Review C, American Physical Society, 2012, 85, pp.055501. ⟨10.1103/PhysRevC.85.055501⟩. ⟨in2p3-00702722⟩