Measurement of the branching ratio of the He-6 beta-decay channel into the alpha plus d continuum
(2009) Physical Review C (Nuclear Physics) — Vol. 80, n° 5 (2009)
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- Abstract
- We measured the deuteron-emission branch of the beta decay of the halo nucleus He-6 using the technique of implantation into a highly segmented silicon detector. The method, used here for the first time with a beam of He-6 ions, ensures precise normalization; the value obtained for the branching ratio is B=(1.65 +/- 0.10)x10(-6) (6% error). The summed energy spectra of the emitted alpha and d particles has also been measured. The results allow us to compare calculations from various models, potentially setting strong constraints on the precision required for the description of the He-6 ground-state wave function.
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Raabe, R., Buscher, J., Ponsaers, J., Aksouh, F., Huyse, M., Ivanov, O., Lesher, S. R., Mukha, I., Pauwels, D., Sawicka, M., Smirnov, D., Stefanescu, I.-M., Van De Walle, J., Van Duppen, P., Angulo, C., de Sereville, N., Martel, I., Sanchez-Benitez, A. M., & Diget, C. Aa. (2009). Measurement of the branching ratio of the He-6 beta-decay channel into the alpha plus d continuum. Physical Review C (Nuclear Physics), 80(5). https://doi.org/10.1103/PhysRevC.80.054307 (Original work published 2009)