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Ransom, C. Sada, C. Vignoli, C. Wiesinger, D. Stukov, D. Zinatulina, E. Bossio, E. Doroshkevich, E. Shevchik, E.V. Demidova, E. Yanovich, F. Fischer, F. Salamida, GERDA Collaboration: M. Agostini, G. Lutter, G. Marshall, G.R. Araujo, G. Zuzel, H. Khushbakht, H. Simgen, I. Barabanov, I. Lippi, I. Nemchenok, I.V. Kirpichnikov, I. Zhitnikov, J. Huang, J. Janicsk\\'o Cs\\'athy, J. Jochum, J. Schreiner, K. Gusev, K. Kilgus, K. Pelczar, K.T. Kn\\\"opfle, K. von Sturm, K. Zuber, L. Baudis, L. Bezrukov, L. Manzanillas, L. Pandola, L. Pertoldi, L. Rauscher, L. Shtembari, L.V. Inzhechik, M. Balata, M. Fomina, M. Hult, M. Junker, M. Laubenstein, M. Lindner, M. Miloradovic, M. Misiaszek, M. Morella, M. Neuberger, M. Redchuk, M. Sch\\\"utt, M. Schwarz, M. Shirchenko, M. Wojcik, N. Di Marco, N. Rumyantseva, O. Kochetov, O. Schulz, O. Selivanenko, P. Grabmayr, P.-J. Chiu, P. Krause, P. Piseri, R. Brugnera, R. Mingazheva, S. Belogurov, S. Calgaro, S. Hackenm\\\"uller, S. Hemmer, S. Riboldi, S. Sailer, S. Sch\\\"onert, S. Sullivan, S.V. Zhukov, T. Comellato, T. Kihm, T. Wester, V. Biancacci, V. Bothe, V. D'Andrea, V. Gurentsov, V. Kazalov, V.N. Kornoukhov, V.V. Kuzminov, W. Hofmann, W. Maneschg, Y. Kerma\\\"idic, Y. M\\\"uller","submitted_at":"2023-08-18T19:51:26Z","abstract_excerpt":"We present the measurement of the two-neutrino double-$\\beta$ decay rate of $^{76}$Ge performed with the GERDA Phase II experiment. With a subset of the entire GERDA exposure, 11.8 kg$\\cdot$yr, the half-life of the process has been determined: $T^{2\\nu}_{1/2} = (2.022 \\pm 0.018_{stat} \\pm 0.038_{sys})\\times10^{21}$ yr. This is the most precise determination of the $^{76}$Ge two-neutrino double-$\\beta$ decay half-life and one of the most precise measurements of a double-$\\beta$ decay process. 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Alexander, A.A. Vasenko, A. Bettini, A. Caldwell, A. Chernogorov, A. Di Giacinto, A. Gangapshev, A. Garfagnini, A.J. Zsigmond, A. Klimenko, A.-K. Sch\\\"utz, A. Lubashevskiy, A.M. Bakalyarov, A. Pullia, A. Smolnikov, A. Veresnikova, A. Zschocke, B. Lehnert, B. Lubsandorzhiev, B. Majorovits, B. Schwingenheuer, B. Zatschler, C. Bauer, C. Cattadori, C. Gooch, C. Macolino, C. Ransom, C. Sada, C. Vignoli, C. Wiesinger, D. Stukov, D. Zinatulina, E. Bossio, E. Doroshkevich, E. Shevchik, E.V. Demidova, E. Yanovich, F. Fischer, F. Salamida, GERDA Collaboration: M. Agostini, G. Lutter, G. Marshall, G.R. Araujo, G. Zuzel, H. Khushbakht, H. Simgen, I. Barabanov, I. Lippi, I. Nemchenok, I.V. Kirpichnikov, I. Zhitnikov, J. Huang, J. Janicsk\\'o Cs\\'athy, J. Jochum, J. Schreiner, K. Gusev, K. Kilgus, K. Pelczar, K.T. Kn\\\"opfle, K. von Sturm, K. Zuber, L. Baudis, L. Bezrukov, L. Manzanillas, L. Pandola, L. Pertoldi, L. Rauscher, L. Shtembari, L.V. Inzhechik, M. Balata, M. Fomina, M. Hult, M. Junker, M. Laubenstein, M. Lindner, M. Miloradovic, M. Misiaszek, M. Morella, M. Neuberger, M. Redchuk, M. Sch\\\"utt, M. Schwarz, M. Shirchenko, M. Wojcik, N. Di Marco, N. Rumyantseva, O. Kochetov, O. Schulz, O. Selivanenko, P. Grabmayr, P.-J. Chiu, P. Krause, P. Piseri, R. Brugnera, R. Mingazheva, S. Belogurov, S. Calgaro, S. Hackenm\\\"uller, S. Hemmer, S. Riboldi, S. Sailer, S. Sch\\\"onert, S. Sullivan, S.V. Zhukov, T. Comellato, T. Kihm, T. Wester, V. Biancacci, V. Bothe, V. D'Andrea, V. Gurentsov, V. Kazalov, V.N. Kornoukhov, V.V. Kuzminov, W. Hofmann, W. Maneschg, Y. Kerma\\\"idic, Y. M\\\"uller","submitted_at":"2023-08-18T19:51:26Z","abstract_excerpt":"We present the measurement of the two-neutrino double-$\\beta$ decay rate of $^{76}$Ge performed with the GERDA Phase II experiment. With a subset of the entire GERDA exposure, 11.8 kg$\\cdot$yr, the half-life of the process has been determined: $T^{2\\nu}_{1/2} = (2.022 \\pm 0.018_{stat} \\pm 0.038_{sys})\\times10^{21}$ yr. This is the most precise determination of the $^{76}$Ge two-neutrino double-$\\beta$ decay half-life and one of the most precise measurements of a double-$\\beta$ decay process. 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