TY - JOUR
T1 - Beta-delayed particle decay of Ne
AU - Morton, A.C.
AU - Chow, J.C.
AU - King, J.D.
AU - Boyd, R.N.
AU - Bateman, N.P.T.
AU - Buchmann, L.
AU - D'Auria, J.M.
AU - Davinson, T.
AU - Dombsky, M.
AU - Galster, W.
AU - Gete, E.
AU - Giesen, U.
AU - Iliadis, C.
AU - Jackson, K.P.
AU - Powell, J.
AU - Roy, G.
AU - Shotter, A.
PY - 2002/7/29
Y1 - 2002/7/29
N2 - The β-delayed particle decay of Ne has been studied via proton-γ coincidences, time-of-flight measurements and the "ratio-cut technique", allowing cleanly-separated proton and α-particle spectra to be obtained. A complete set of proton and α branching ratios for the decay of 14 excited states in F to the ground and excited states of O and N has been determined and branching ratios for the β decay of Ne to these states have been deduced. From the branching ratios, ft values and reduced Gamow-Teller matrix elements were calculated; no indication of isospin mixing in the isobaric analog state in F was observed. From the measurement of proton-γ angular correlations, combined with the selection rules for an allowed β decay, we obtain J = 1/2 for states at 8.436 and 9.450 MeV and 3/2 for the state at 10.030 MeV in F. Probabilities for the β-delayed pα decay to C through the tails of the subthreshold 7.117 and 6.917 MeV states in O have been calculated and the feasibility of using such decays to provide information about the rates for the E1 and E2 components of the C(α, γ)O reaction is discussed.
AB - The β-delayed particle decay of Ne has been studied via proton-γ coincidences, time-of-flight measurements and the "ratio-cut technique", allowing cleanly-separated proton and α-particle spectra to be obtained. A complete set of proton and α branching ratios for the decay of 14 excited states in F to the ground and excited states of O and N has been determined and branching ratios for the β decay of Ne to these states have been deduced. From the branching ratios, ft values and reduced Gamow-Teller matrix elements were calculated; no indication of isospin mixing in the isobaric analog state in F was observed. From the measurement of proton-γ angular correlations, combined with the selection rules for an allowed β decay, we obtain J = 1/2 for states at 8.436 and 9.450 MeV and 3/2 for the state at 10.030 MeV in F. Probabilities for the β-delayed pα decay to C through the tails of the subthreshold 7.117 and 6.917 MeV states in O have been calculated and the feasibility of using such decays to provide information about the rates for the E1 and E2 components of the C(α, γ)O reaction is discussed.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-0037194211&partnerID=8YFLogxK
U2 - 10.1016/S0375-9474(02)00862-X
DO - 10.1016/S0375-9474(02)00862-X
M3 - Article
AN - SCOPUS:0037194211
SN - 0375-9474
VL - 706
SP - 15
EP - 47
JO - Nuclear Physics A
JF - Nuclear Physics A
IS - 1-2
ER -