Phys. Rev. C 50, 1170–1174 (1994)Results of a search for double positron decay and electron-positron conversion of 78KrReceived 21 March 1994; published in the issue dated August 1994 The results of a search for the 2β+ and Kβ+ decay modes of 78Kr, in a coincidence experiment using a high pressure ionization chamber of enriched 78Kr inside an array of sodium iodine scintillators, are presented. After 4434 h of counting time, the half-life lower limits obtained are T1/2(Kβ+)0ν≥5.1×1021 yr and T1/2(2β+)0ν+2ν≥2.0×1021 yr at 68% C.L. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.50.1170
DOI:
10.1103/PhysRevC.50.1170
PACS:
23.40.Bw, 27.50.+e
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