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A new precision measurement of the α -decay half-life of 190 Pt

2017; Elsevier BV; Volume: 768; Linguagem: Inglês

10.1016/j.physletb.2017.02.052

ISSN

1873-2445

Autores

Mihály Braun, Yordan M. Georgiev, Tommy Schönherr, H. Wilsenach, Κ. Zuber,

Tópico(s)

Quantum Chromodynamics and Particle Interactions

Resumo

A laboratory measurement of the $\alpha$-decay half-life of $^{190}$Pt has been performed using a low background Frisch grid ionisation chamber. A total amount of 216.60(17) mg of natural platinum has been measured for 75.9 days. The resulting half-life is $(4.97\pm0.16)\times 10^{11}$ years, with a total uncertainty of 3.2%. This number is in good agreement with the half-life obtained using the geological comparison method.

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