@article{d37a873a1d8a48dca9890a5d17c5bf40,
title = "Search for tri-nucleon decays of 76 Ge in GERDA",
abstract = "We search for tri-nucleon decays of 76 Ge in the dataset from the GERmanium Detector Array (GERDA) experiment. Decays that populate excited levels of the daughter nucleus above the threshold for particle emission lead to disintegration and are not considered. The ppp-, ppn-, and pnn-decays lead to 73 Cu, 73 Zn, and 73 Ga nuclei, respectively. These nuclei are unstable and eventually proceed by the beta decay of 73 Ga to 73 Ge (stable). We search for the 73 Ga decay exploiting the fact that it dominantly populates the 66.7 keV 73m Ga state with half-life of 0.5 s. The nnn-decays of 76 Ge that proceed via 73m Ge are also included in our analysis. We find no signal candidate and place a limit on the sum of the decay widths of the inclusive tri-nucleon decays that corresponds to a lower lifetime limit of 1.2 × 10 26 yr (90% credible interval). This result improves previous limits for tri-nucleon decays by one to three orders of magnitude.",
author = "Gerda collaboration and M. Agostini and A. Alexander and G. Araujo and Bakalyarov, {A. M.} and M. Balata and I. Barabanov and L. Baudis and C. Bauer and S. Belogurov and A. Bettini and L. Bezrukov and V. Biancacci and E. Bossio and V. Bothe and R. Brugnera and A. Caldwell and S. Calgaro and C. Cattadori and A. Chernogorov and Chiu, {P. J.} and T. Comellato and V. D{\textquoteright}Andrea and Demidova, {E. V.} and {Di Giacinto}, A. and {Di Marco}, N. and E. Doroshkevich and F. Fischer and M. Fomina and A. Gangapshev and A. Garfagnini and C. Gooch and P. Grabmayr and V. Gurentsov and K. Gusev and J. Hakenm{\"u}ller and S. Hemmer and W. Hofmann and M. Hult and Inzhechik, {L. V.} and {Janicsk{\'o} Cs{\'a}thy}, J. and J. Jochum and M. Junker and V. Kazalov and Y. Kerma{\"i}dic and H. Khushbakht and T. Kihm and K. Kilgus and Kirpichnikov, {I. V.} and A. Klimenko and S. Sch{\"o}nert",
note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",
year = "2023",
month = sep,
doi = "10.1140/epjc/s10052-023-11862-8",
language = "English",
volume = "83",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer Nature",
number = "9",
}