ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Search for double-electron capture in 152Gd with GAGG:Ce scintillator

NázevTitle
Search for double-electron capture in 152Gd with GAGG:Ce scintillatorSearch for double-electron capture in 152Gd with GAGG:Ce scintillator
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
P. Belli, R. Bernabei, F. Cappella, V. Caracciolo, F. Danevich, V. Tretyak
DOIDOI
10.1088/1361-6471/ae4d66
Časopis / citaceJournal / citation
Journal of Physics G: Nuclear and Particle Physics 53(4), 045101 (2026) · ISSN 0954-3899
RokYear
2026
JazykLanguage
eng
ZáznamyRecords
ProjektProject
LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026)LSM-CZ III - Podzemní laboratoř LSM - účast České republiky - LM2023063 (2023–2026); Laboratoire Souterrain de Modane - účast ČRLaboratoire Souterrain de Modane – participation of the Czech Republic
CitovánoCited by
1 (INSPIRE-HEP)
2026: 1
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

Double-electron capture in 152Gd was searched for over 1336 h with a 286 g GAGG:Ce crystal scintillator at the Gran Sasso underground laboratory of the INFN (Italy). New, improved by four orders of magnitude, limit on the near-resonant 0ν2EC capture in 152Gd was set as lim T1/2 = 8.1 × 1016 year at 90% C.L. Moreover, for the first time, a laboratory experiment has established a lower limit on the half-life of the allowed 2νKL process in the nuclide, with lim T1/2 = 9.2 × 1016 year at 90% C.L.

Double-electron capture in 152Gd was searched for over 1336 h with a 286 g GAGG:Ce crystal scintillator at the Gran Sasso underground laboratory of the INFN (Italy). New, improved by four orders of magnitude, limit on the near-resonant 0ν2EC capture in 152Gd was set as lim T1/2 = 8.1 × 1016 year at 90% C.L. Moreover, for the first time, a laboratory experiment has established a lower limit on the half-life of the allowed 2νKL process in the nuclide, with lim T1/2 = 9.2 × 1016 year at 90% C.L.

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