Observation of 2β 2ν decay of 150Nd in an experiment with the time projection chamber
Artem'ev V. A. , Brakhman E. V. , Zel'dovich O. Ya., Karelin A. K. , Kirichenko V. V. , Kozodaeva V. V. , Lyubimov V. A. , Mitin A. I. , Paramokhin V. N. , Tsvetkova T. N. , Vasil'ev S. I. , Klimenko A. A. , Osetrov S. B., Pomanskii A. A. , Smol'nikov A. A.
The time projection chamber has been used in a magnetic field to determine the decay half-life of 150Nd. Measurements on a sample of the isotope 150Nd (92% enrichment) and a sample with the natural isotopic composition, natNd, reveal Τι/2(2β2ν) = (1.7±J;°±0.35) Χ 1019 yr. The effect-to-background ratio is 4/1.