Beta-delayed proton emission from ²¹Mg

16 pags.; 9 figs.; 6 tabs.© 2015, SIF, Springer-Verlag Berlin Heidelberg. Beta-delayed proton emission from 21Mg has been measured at ISOLDE, CERN, with a detection setup consisting of two charged-particle telescopes surrounding the decay point. Altogether 27 βp branches were measured with center-of-mass energies between 0.4–7.2 MeV. Seven new βp branches were observed. Beta-delayed protons were used to determine the half-life of 21Mg as 118.6 ± 0.5 ms. From a line shape fit of the βp branches we extract the widths, spins, and parities of the resonances of 21Na. An improved interpretation of the decay scheme in accordance with the results obtained in reaction studies is presented.This work has been supported by the European Commision within the Seventh Framework Programme “European Nuclear Science and Applications Research”, contract no. 262010 (ENSAR), and by the Spanish research agency under number FPA2012-32443.Peer Reviewe

Beta-delayed proton emission from Mg-21

Beta-delayed proton emission from Mg-21 has been measured at ISOLDE, CERN, with a detection setup consisting of two charged-particle telescopes surrounding the decay point. Altogether 27 beta p branches were measured with center-of-mass energies between 0.4-7.2MeV. Seven new beta p branches were observed. Beta-delayed protons were used to determine the half-life of Mg-21 as 118.6 +/- 0.5 ms. From a line shape fit of the beta p branches we extract the widths, spins, and parities of the resonances of Na-21. An improved interpretation of the decay scheme in accordance with the results obtained in reaction studies is presented