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Open Access item Proton-proton correlations observed in two-proton decay of 19Mg and 16Ne

Authors:Mukha, I.
Espino, J. M.
García Ramos, José Enrique
Gómez-Camacho, Joaquín
Keywords:Nuclear physics, Properties of nuclei; nuclear energy levels, Few-body systems, Decay by proton emission
Issue Date:28-Feb-2008
Citation:arXiv:0802.4263v1 [nucl-ex]
Abstract:Proton-proton correlations were observed for the two-proton decays of the ground states of $^{19}$Mg and $^{16}$Ne. The trajectories of the respective decay products, $^{17}$Ne+p+p and $^{14}$O+p+p, were measured by using a tracking technique with microstrip detectors. These data were used to reconstruct the angular correlations of fragments projected on planes transverse to the precursor momenta. The measured three-particle correlations reflect a genuine three-body decay mechanism and allowed us to obtain spectroscopic information on the precursors with valence protons in the sd shell.
Description:5 pages, 6 figures.-- PACS nrs.: 21.10.-k; 21.45.+v; 23.50.+z.-- et al.
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