A detector containing two radiopure 116CdWO4 crystal scintillators with total mass of 1.2 kg was operated during 35324 h at the Gran Sasso Underground Laboratory (INFN, Italy) with the main aim to investigate double beta decay of 116Cd. As a by-product of the experiment, a new upper limit on atomic abundance of hypothetical naturally occurring long-lived seaborgium (eka-tungsten, Z = 106) in tungsten was set at 5.1 10−15 atom(Sg)/atom(W) with 90% C.L. (assuming the Sg half-life of 109 yr) by the analysis of the alpha decay events. This limit is better than those obtained with a ZnWO4 scintillator and in other types of experiments which used the accelerator mass spectrometry or searched for spontaneous fission of superheavy elements.

Belli, P., Bernabei, R., F Cappella, F., Caracciolo, V., Cerulli, R., Danevich, F.a., et al. (2022). Search for naturally occurring seaborgium with radiopure 116CdWO4 crystal scintillators. PHYSICA SCRIPTA, 97(8) [10.1088/1402-4896/ac7a6d].

Search for naturally occurring seaborgium with radiopure 116CdWO4 crystal scintillators

Bernabei R;V Caracciolo V;
2022-01-01

Abstract

A detector containing two radiopure 116CdWO4 crystal scintillators with total mass of 1.2 kg was operated during 35324 h at the Gran Sasso Underground Laboratory (INFN, Italy) with the main aim to investigate double beta decay of 116Cd. As a by-product of the experiment, a new upper limit on atomic abundance of hypothetical naturally occurring long-lived seaborgium (eka-tungsten, Z = 106) in tungsten was set at 5.1 10−15 atom(Sg)/atom(W) with 90% C.L. (assuming the Sg half-life of 109 yr) by the analysis of the alpha decay events. This limit is better than those obtained with a ZnWO4 scintillator and in other types of experiments which used the accelerator mass spectrometry or searched for spontaneous fission of superheavy elements.
2022
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
Seaborgium; 116CdWO4; underground physics
Belli, P., Bernabei, R., F Cappella, F., Caracciolo, V., Cerulli, R., Danevich, F.a., et al. (2022). Search for naturally occurring seaborgium with radiopure 116CdWO4 crystal scintillators. PHYSICA SCRIPTA, 97(8) [10.1088/1402-4896/ac7a6d].
Belli, P; Bernabei, R; F Cappella, F; Caracciolo, V; Cerulli, R; Danevich, Fa; Incicchitti, A; Kasperovych, Dv; Kobychev, Vv; Laubenstein, M; Poda, Dv; Polischuk, Og; Sokur, Nv; Tretyak, Vi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/303394
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