Barker, F C2015-12-132015-12-130556-2813http://hdl.handle.net/1885/86198For three-body decay of a nuclear level, it is suggested that instead of the total width being the sum of the partial widths calculated from R-matrix formulas the contributions from different decay channels should be added coherently. Two-proton and two-neutron decay widths are considered, and also widths of levels of9Be and9B.20032015-12-12