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arXiv · 1211.2133

Rare $β$p decays in light nuclei

M. J. G. Borge·L. M. Fraile·H. O. U. Fynbo·B. Jonson·O. S. Kirsebom·T. Nilsson·G. Nyman·G. Possnert·K. Riisager·O. Tengblad
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Abstract

Beta-delayed proton emission may occur at very low rates in the decays of the light nuclei $^{11}$Be and $^8$B. This paper explores the potential physical significance of such decays, estimates their rates and reports on first attempts to detect them: an experiment at ISOLDE/CERN gives a branching ratio for $^{11}$Be of $(2.5 \pm 2.5) \cdot 10^{-6}$ and an experiment at JYFL a 95% confidence upper limit of $2.6 \cdot 10^{-5}$ for $^8$B.

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M. J. G. Borge, L. M. Fraile, H. O. U. Fynbo, B. Jonson, O. S. Kirsebom, T. Nilsson, G. Nyman, G. Possnert, K. Riisager, O. Tengblad. 2012-11-09. Rare $β$p decays in light nuclei. https://doi.org/10.1088/0954-3899%2F40%2F3%2F035109

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