A search for double β decay of dysprosium was realized for the first time with the help of an ultra-low background HP Ge γ detector. After 2512 h of data taking with a 322 g sample of dysprosium oxide limits on double beta processes in 156Dy and 158Dy have been established on the level of T⩾1014-1016 yr. Possible resonant double electron captures in 156Dy and 158Dy were restricted on a similar level. As a by-product of the experiment we have measured the radioactive contamination of the Dy2O3 sample and set limits on the α decay of dysprosium isotopes to the excited levels of daughter nuclei as T⩾1015-1017 yr.

Belli, P., Bernabei, R., Cappella, F., Cerulli, R., Danevich, F., D'Angelo, S., et al. (2011). First search for double β decay of dysprosium. NUCLEAR PHYSICS. A, 859(1), 126-139 [10.1016/j.nuclphysa.2011.04.003].

First search for double β decay of dysprosium

BERNABEI, RITA;
2011-01-01

Abstract

A search for double β decay of dysprosium was realized for the first time with the help of an ultra-low background HP Ge γ detector. After 2512 h of data taking with a 322 g sample of dysprosium oxide limits on double beta processes in 156Dy and 158Dy have been established on the level of T⩾1014-1016 yr. Possible resonant double electron captures in 156Dy and 158Dy were restricted on a similar level. As a by-product of the experiment we have measured the radioactive contamination of the Dy2O3 sample and set limits on the α decay of dysprosium isotopes to the excited levels of daughter nuclei as T⩾1015-1017 yr.
2011
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
Settore FIS/01 - FISICA SPERIMENTALE
English
Con Impact Factor ISI
156Dy(2EC), (β+EC), (α), (α), 160,161,162Dy(α), E, I, T lower limits, for α and various 2β-decay modes, Natural Dy2O3 sample of 322 g, Ultra-low background HPGe detector at the Gran Sasso National Laboratory underground facility
Belli, P., Bernabei, R., Cappella, F., Cerulli, R., Danevich, F., D'Angelo, S., et al. (2011). First search for double β decay of dysprosium. NUCLEAR PHYSICS. A, 859(1), 126-139 [10.1016/j.nuclphysa.2011.04.003].
Belli, P; Bernabei, R; Cappella, F; Cerulli, R; Danevich, F; D'Angelo, S; di Vacri, M; Incicchitti, A; Laubenstein, M; Nagorny, S; Nisi, S; Tolmachev, A; Tretyak, V; Yavetskiy, R
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/17238
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