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First Observation of Beta-Delayed Three-Proton Emission in 45Fe...

Publication Type
Journal
Journal Name
Physical Review C
Publication Date
Volume
76
Issue
4

The decay of extremely neutron deficient 45Fe has been studied by means of a new type of a gaseous detector in which a technique of digital imaging was used to record tracks of charged particles. The �+ decay channels accompanied by proton emission were clearly identified. In addition to �-delayed one-proton and �-delayed two-proton decays, �-delayed three-proton emission was recorded which represents the first direct and unambiguous observation of this decay channel. The branching ratio for the � decay of 45Fe and the corresponding partial half-life are found to be 0.30 � 0.04 and T1/2(�) = 8.7 � 1.3 ms, respectively.