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arXiv · 1506.04515

Beta-delayed proton emission from $^{21}$Mg

M. V. Lund·M. J. G. Borge·J. A. Briz·J. Cederkäll·H. O. U. Fynbo·J. H. Jensen·B. Jonson·K. L. Laursen·T. Nilsson·A. Perea·V. Pesudo·K. Riisager·O. Tengblad
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Abstract

Beta-delayed proton emission from $^{21}$Mg has been measured at ISOLDE, CERN, with a detection setup including particle identification capabilities. $\beta$-delayed protons with center of mass energies between 0.39$\,$MeV and 7.2$\,$MeV were measured and used to determine the half life of $^{21}$Mg as $118.6\pm 0.5\,$ms. From a line shape fit of the $\beta p$ branches we extract spectroscopic information about the resonances of $^{21}$Na. Finally an improved interpretation of the decay scheme in accordance with the results obtained in reaction studies is presented.

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M. V. Lund, M. J. G. Borge, J. A. Briz, J. Cederkäll, H. O. U. Fynbo, J. H. Jensen, B. Jonson, K. L. Laursen, T. Nilsson, A. Perea, V. Pesudo, K. Riisager, O. Tengblad. 2015-06-15. Beta-delayed proton emission from $^{21}$Mg. https://doi.org/10.1140/epja/i2015-15113-1

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