Final Results of GERDA on the Search for Neutrinoless Double-β Decay [Final Results of GERDA on the Search for Neutrinoless Double-beta Decay]

Agostini, M.; Araujo, G. .; Bakalyarov, A. .; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Bettini, A.; Bezrukov, L.; Biancacci, V.; Borowicz, D.; Bossio, E.; Bothe, V.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Comellato, T.; D’Andrea, V.; Demidova, E. .; Di Marco, N.; Doroshkevich, E.; Fischer, F.; Fomina, M.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hemmer, S.; Hiller, R.; Hofmann, W.; Huang, J.; Hult, M.; Inzhechik, L. .; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kermaïdic, Y.; Khushbakht, H.; Kihm, T.; Kirpichnikov, I. .; Klimenko, A.; Kneißl, R.; Knöpfle, K. .; Kochetov, O.; Kornoukhov, V. .; Krause, P.; Kuzminov, V. .; Laubenstein, M.; Lazzaro, A.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Manzanillas, L.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Müller, Y.; Nemchenok, I.; Panas, K.; Pandola, L.; Pelczar, K.; Pertoldi, L.; Piseri, P.; Pullia, A.; Ransom, C.; Rauscher, L.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Schönert, S.; Schreiner, J.; Schütt, M.; Schütz, A.-.; Schulz, O.; Schwarz, M.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Shtembari, L.; Simgen, H.; Smolnikov, A.; Stukov, D.; Vasenko, A. .; Veresnikova, A.; Vignoli, C.; von Sturm, K.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zatschler, B.; Zhitnikov, I.; Zhukov, S. .; Zinatulina, D.; Zschocke, A.; Zsigmond, A. .; Zuber, K.; Zuzel, G.

doi:10.1103/PhysRevLett.125.252502

The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-beta (0 nu beta beta) decay of Ge-76, whose discovery would have far-reaching implications in cosmology and particle physics. By operating bare germanium diodes, enriched in Ge-76, in an active liquid argon shield, GERDA achieved an unprecedently low background index of 5.2 x 10(-4) counts/(keV kg yr) in the signal region and met the design goal to collect an exposure of 100 kg yr in a background-free regime. When combined with the result of Phase I, no signal is observed after 127.2 kg yr of total exposure. A limit on the half-life of 0 nu beta beta decay in Ge-76 is set at T-1/2 > 1.8 x 10(26) yr at 90% C.L., which coincides with the sensitivity assuming no signal.

Final Results of GERDA on the Search for Neutrinoless Double-β Decay [Final Results of GERDA on the Search for Neutrinoless Double-beta Decay] / M. Agostini, G. . Araujo, A. . Bakalyarov, M. Balata, I. Barabanov, L. Baudis, C. Bauer, E. Bellotti, S. Belogurov, A. Bettini, L. Bezrukov, V. Biancacci, D. Borowicz, E. Bossio, V. Bothe, V. Brudanin, R. Brugnera, A. Caldwell, C. Cattadori, A. Chernogorov, T. Comellato, V. D’Andrea, E. . Demidova, N. Di Marco, E. Doroshkevich, F. Fischer, M. Fomina, A. Gangapshev, A. Garfagnini, C. Gooch, P. Grabmayr, V. Gurentsov, K. Gusev, J. Hakenmüller, S. Hemmer, R. Hiller, W. Hofmann, J. Huang, M. Hult, L. . Inzhechik, J. Janicskó Csáthy, J. Jochum, M. Junker, V. Kazalov, Y. Kermaïdic, H. Khushbakht, T. Kihm, I. . Kirpichnikov, A. Klimenko, R. Kneißl, K. . Knöpfle, O. Kochetov, V. . Kornoukhov, P. Krause, V. . Kuzminov, M. Laubenstein, A. Lazzaro, M. Lindner, I. Lippi, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, C. Macolino, B. Majorovits, W. Maneschg, L. Manzanillas, M. Miloradovic, R. Mingazheva, M. Misiaszek, P. Moseev, Y. Müller, I. Nemchenok, K. Panas, L. Pandola, K. Pelczar, L. Pertoldi, P. Piseri, A. Pullia, C. Ransom, L. Rauscher, S. Riboldi, N. Rumyantseva, C. Sada, F. Salamida, S. Schönert, J. Schreiner, M. Schütt, A.-. Schütz, O. Schulz, M. Schwarz, B. Schwingenheuer, O. Selivanenko, E. Shevchik, M. Shirchenko, L. Shtembari, H. Simgen, A. Smolnikov, D. Stukov, A. . Vasenko, A. Veresnikova, C. Vignoli, K. von Sturm, T. Wester, C. Wiesinger, M. Wojcik, E. Yanovich, B. Zatschler, I. Zhitnikov, S. . Zhukov, D. Zinatulina, A. Zschocke, A. . Zsigmond, K. Zuber, G. Zuzel. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 125:25(2020 Dec 17), pp. 252502.252502-1-252502.252502-7. [10.1103/PhysRevLett.125.252502]

Final Results of GERDA on the Search for Neutrinoless Double-β Decay [Final Results of GERDA on the Search for Neutrinoless Double-beta Decay]

Agostini, M.;Araujo, G. R.;Bakalyarov, A. M.;Balata, M.;Barabanov, I.;Baudis, L.;Bauer, C.;Bellotti, E.;Belogurov, S.;Bettini, A.;Bezrukov, L.;Biancacci, V.;Borowicz, D.;Bossio, E.;Bothe, V.;Brudanin, V.;Brugnera, R.;Caldwell, A.;Cattadori, C.;Chernogorov, A.;Comellato, T.;D’Andrea, V.;Demidova, E. V.;Di Marco, N.;Doroshkevich, E.;Fischer, F.;Fomina, M.;Gangapshev, A.;Garfagnini, A.;Gooch, C.;Grabmayr, P.;Gurentsov, V.;Gusev, K.;Hakenmüller, J.;Hemmer, S.;Hiller, R.;Hofmann, W.;Huang, J.;Hult, M.;Inzhechik, L. V.;Janicskó Csáthy, J.;Jochum, J.;Junker, M.;Kazalov, V.;Kermaïdic, Y.;Khushbakht, H.;Kihm, T.;Kirpichnikov, I. V.;Klimenko, A.;Kneißl, R.;Knöpfle, K. T.;Kochetov, O.;Kornoukhov, V. N.;Krause, P.;Kuzminov, V. V.;Laubenstein, M.;Lazzaro, A.;Lindner, M.;Lippi, I.;Lubashevskiy, A.;Lubsandorzhiev, B.;Lutter, G.;Macolino, C.;Majorovits, B.;Maneschg, W.;Manzanillas, L.;Miloradovic, M.;Mingazheva, R.;Misiaszek, M.;Moseev, P.;Müller, Y.;Nemchenok, I.;Panas, K.;Pandola, L.;Pelczar, K.;Pertoldi, L.;P. Piseri;A. Pullia;Ransom, C.;Rauscher, L.;S. Riboldi;Rumyantseva, N.;Sada, C.;Salamida, F.;Schönert, S.;Schreiner, J.;Schütt, M.;Schütz, A. -K.;Schulz, O.;Schwarz, M.;Schwingenheuer, B.;Selivanenko, O.;Shevchik, E.;Shirchenko, M.;Shtembari, L.;Simgen, H.;Smolnikov, A.;Stukov, D.;Vasenko, A. A.;Veresnikova, A.;Vignoli, C.;von Sturm, K.;Wester, T.;Wiesinger, C.;Wojcik, M.;Yanovich, E.;Zatschler, B.;Zhitnikov, I.;Zhukov, S. V.;Zinatulina, D.;Zschocke, A.;Zsigmond, A. J.;Zuber, K.;Zuzel, G.

2020

Abstract

The GERmanium Detector Array (GERDA) experiment searched for the lepton-number-violating neutrinoless double-beta (0 nu beta beta) decay of Ge-76, whose discovery would have far-reaching implications in cosmology and particle physics. By operating bare germanium diodes, enriched in Ge-76, in an active liquid argon shield, GERDA achieved an unprecedently low background index of 5.2 x 10(-4) counts/(keV kg yr) in the signal region and met the design goal to collect an exposure of 100 kg yr in a background-free regime. When combined with the result of Phase I, no signal is observed after 127.2 kg yr of total exposure. A limit on the half-life of 0 nu beta beta decay in Ge-76 is set at T-1/2 > 1.8 x 10(26) yr at 90% C.L., which coincides with the sensitivity assuming no signal.

Scheda breve

Scheda completa

Scheda completa (DC)

	Settori scientifico-disciplinari dell'articolo (sola visualizzazione)
	
				Settore FIS/01 - Fisica Sperimentale
Settore FIS/05 - Astronomia e Astrofisica
			
	Data di pubblicazione
	
				17-dic-2020
			
	Rivista in ANCE
	
				PHYSICAL REVIEW LETTERS
			
	DOI
	
				https://dx.doi.org/10.1103/PhysRevLett.125.252502
			
	Tipologia
	
				Article (author)
			
	Appare nelle tipologie:
	
				01 - Articolo su periodico

File in questo prodotto:

File	Dimensione	Formato
PhysRevLett.125.252502.pdf accesso aperto Tipologia: Publisher's version/PDF Dimensione 337.53 kB Formato Adobe PDF Visualizza/Apri	337.53 kB	Adobe PDF	Visualizza/Apri

Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/909354

Citazioni

7

293

227

IRIS Institutional Research Information System - AIR Archivio Istituzionale della Ricerca