Beta-delayed proton emission from Mg

Lund, M. V.*; Andreyev, A. N.; Borge, M. J. G.*; Cederkll, J.*; De Witte, H.*; Fraile, L. M.*; Fynbo, H. O. U.*; Greenlees, P. T.*; Harkness-Brennan, L. J.*; Howard, A. M.*; Huyse, M.*; Jonson, B.*; Judson, D. S.*; Kirsebom, O. S.*; Konki, J.*; Kurcewicz, J.*; Lazarus, I.*; Lica, R.*; Lindberg, S.*; Madurga, M.*; Marginean, N.*; Marroquin, I.*; Mihai, C.*; Munch, M.*; Nacher, E.*; Negret, A.*; Nilsson, T.*; Page, R. D.*; Pascu, S.*; Perea, A.*; Pucknell, V.*; Rahkila, P.*; Rapisarda, E.*; Riisager, K.*; Rotaru, F.*; Sotty, C.*; Stanoiu, M.*; Tengblad, O.*; Turturica, A.*; Van Duppen, P.*; Vedia, V.*; Wadsworth, R.*; Warr, N.*

Beta-delayed proton emission from Mg has been measured at ISOLDE, CERN, with the ISOLDE Decay Station setup including both charged-particle and -ray detection capabilities. A total of 27 delayed proton branches were measured including seven so far unobserved. An updated decay scheme, including three new resonances above the proton separation energy in Na and more precise resonance energies, is presented. Beta-decay feeding to two resonances above the Isobaric Analogue State in Na is observed. This may allow studies of the 4032.9(2.4) keV resonance in Ne through the beta decay of Mg, which is important for the astrophysically relevant reaction O(,)Ne. Beta-delayed protons were used to obtain a more precise value for the half-life of Mg, 91.4(1.0) ms.