The β^+ decay of ^(31)Ar was investig.ted in an experiment at the g.I-FRS *** ions of interest have been produced in the frag.entation of a ^(36)Ar beam at 880 Me V/nucleon and implanted in a time projection chamber ...
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The β^+ decay of ^(31)Ar was investig.ted in an experiment at the g.I-FRS *** ions of interest have been produced in the frag.entation of a ^(36)Ar beam at 880 Me V/nucleon and implanted in a time projection chamber with optical readout. In addition to β-delayed one and two proton emission, for the first time the emission of β-delayed 3 protons has been observed. The branching.ratio for this decay mode is found to be(0.07 ± 0.02)%.
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