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Ball GC, Bishop S, Behr JA, et al. Precise half-life measurement for the superallowed 0(+)-->0(+) beta emitter (74)Rb: first results from the new radioactive beam facility (ISAC) at TRIUMF. Phys Rev Lett. 2001;86(8):1454-7doi: 10.1103/PhysRevLett.86.1454.
Ball, G. C., Bishop, S., Behr, J. A., Boisvert, G. C., Bricault, P., Cerny, J., D'Auria, J. M., Dombsky, M., Hardy, J. C., Iacob, V., Leslie, J. R., Lindner, T., Macdonald, J. A., Mak, H. B., Moltz, D. M., Powell, J., Savard, G., & Towner, I. S. (2001). Precise half-life measurement for the superallowed 0(+)-->0(+) beta emitter (74)Rb: first results from the new radioactive beam facility (ISAC) at TRIUMF. Physical review letters, 86(8), 1454-7. https://doi.org/10.1103/PhysRevLett.86.1454
Ball, G C, et al. "Precise half-life measurement for the superallowed 0(+)-->0(+) beta emitter (74)Rb: first results from the new radioactive beam facility (ISAC) at TRIUMF." Physical review letters vol. 86,8 (2001): 1454-7. doi: https://doi.org/10.1103/PhysRevLett.86.1454
Ball GC, Bishop S, Behr JA, Boisvert GC, Bricault P, Cerny J, D'Auria JM, Dombsky M, Hardy JC, Iacob V, Leslie JR, Lindner T, Macdonald JA, Mak HB, Moltz DM, Powell J, Savard G, Towner IS. Precise half-life measurement for the superallowed 0(+)-->0(+) beta emitter (74)Rb: first results from the new radioactive beam facility (ISAC) at TRIUMF. Phys Rev Lett. 2001 Feb 19;86(8):1454-7. doi: 10.1103/PhysRevLett.86.1454. PMID: 11290166.
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Phys Rev Lett. 2001 Feb 19;86(8):1454-7. doi: 10.1103/PhysRevLett.86.1454.

Precise half-life measurement for the superallowed 0(+)-->0(+) beta emitter (74)Rb: first results from the new radioactive beam facility (ISAC) at TRIUMF.

Physical review letters

G C Ball, S Bishop, J A Behr, G C Boisvert, P Bricault, J Cerny, J M D'Auria, M Dombsky, J C Hardy, V Iacob, J R Leslie, T Lindner, J A Macdonald, H B Mak, D M Moltz, J Powell, G Savard, I S Towner

Affiliations

  1. TRIUMF, Vancouver, British Columbia, Canada.

PMID: 11290166 DOI: 10.1103/PhysRevLett.86.1454

Abstract

Presently, the world data for superallowed beta decay leads to a result in disagreement (at the 98% confidence level) with the predictions of the minimal standard model for the unitarity of the Cabibbo-Kobayashi-Maskawa matrix. Precise data for the superallowed 0(+)-->0(+) beta decay of (74)Rb would provide a critical test of the nucleus-dependent isospin symmetry-breaking corrections that must be calculated for these superallowed Fermi beta decays. The present work reports the first precise measurement of the half-life for (74)Rb ( t(1/2) = 64.761+/-0.031 ms). The data were obtained at the radioactive beam facility (ISAC) at TRIUMF using a beam of approximately 4000 (74)Rb ions s(-1).

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