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

Journal of Physics G Nuclear and Particle Physics 2026 Open access

Read full text
Authors: Pierluigi Belli, R Bernabei, Fabio Cappella, Vincenzo Caracciolo, Riccardo Cerulli, Fedor Danevich, Antonella Incicchitti, V. R. Klavdiienko, Alice Leoncini, Vittorio Merlo, V.I. Tretyak
DOI: 10.1088/1361-6471/ae4d66
Cited by: 1
References: 50

Abstract

Abstract Double-electron capture in 152 Gd 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 0 ν 2EC capture in 152 Gd was set as lim T 1 / 2 = 8.1 × 1 0 16 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 2 ν KL process in the nuclide, with lim T 1 / 2 = 9.2 × 1 0 16 year at 90% C.L.

Fields of Study & Subjects

Nuclear physics research studies Crystallography and Radiation Phenomena Neutrino Physics Research

Publication details

Journal / source
Journal of Physics G Nuclear and Particle Physics
Publisher
IOP Publishing
Volume
53
Issue
4
Pages
045101–045101
Publication date
4 March 2026
Language
EN