{"title":"Search for One- and Tri-Nucleon Decays of 76Ge in the GERDA Experiment","authors":"A. A. Smolnikov","doi":"10.1134/S1062873825712024","DOIUrl":null,"url":null,"abstract":"<p>Possible one- and tri-nucleon decays that violate baryon number conservation are predicted in several extensions of the Standard Model. The main goal of the GERDA experiment was to search for the neutrinoless double beta decay of <sup>76</sup>Ge. GERDA has provided other important results in the search for different processes beyond the Standard Model. Possible manifestations of an inclusive (i.e., mode-independent) decay of single neutrons and protons and certain modes of tri-nucleon decays in the <sup>76</sup>Ge nucleus have been sought in particular. Results from such studies are presented in the form of such constraints on partial lifetimes as τ<sub>n</sub> > 1.5 × 10<sup>24</sup> years for neutrons, τ<sub>p</sub> > 1.3 × 10<sup>24</sup> years for protons at 90% CL, and τ > 1.2 × 10<sup>26</sup> years for tri-nucleon decays.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1261 - 1268"},"PeriodicalIF":0.4800,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Russian Academy of Sciences: Physics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1062873825712024","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 0
Abstract
Possible one- and tri-nucleon decays that violate baryon number conservation are predicted in several extensions of the Standard Model. The main goal of the GERDA experiment was to search for the neutrinoless double beta decay of 76Ge. GERDA has provided other important results in the search for different processes beyond the Standard Model. Possible manifestations of an inclusive (i.e., mode-independent) decay of single neutrons and protons and certain modes of tri-nucleon decays in the 76Ge nucleus have been sought in particular. Results from such studies are presented in the form of such constraints on partial lifetimes as τn > 1.5 × 1024 years for neutrons, τp > 1.3 × 1024 years for protons at 90% CL, and τ > 1.2 × 1026 years for tri-nucleon decays.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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