Improved limit on neutrinoless double beta decay of $^{76}$Ge from GERDA Phase 
II

Agostini, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Bettini, A.; Bezrukov, L.; Biernat, J.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Comellato, T.; D'Andrea, V.; Demidova, E. V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Gangapshev, A.; Garfagnini, A.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hiller, R.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kermaidic, Y.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Panas, K.; Pandola, L.; Pelczar, K.; Pertoldi, L.; Pullia, A.; Ransom, C.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Schmitt, C.; Schneider, B.; Schönert, S.; Schütz, A-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zschocke, A.; Zsigmond, A. J.; Zuber, K.; Zuzel, G.

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Improved limit on neutrinoless double beta decay of $^{76}$Ge from GERDA Phase II

Agostini, M., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., et al. (2018). Improved limit on neutrinoless double beta decay of $^{76}$Ge from GERDA Phase II. Physical Review Letters, (120), 132503. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-335.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0003-F8FF-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0003-F900-4

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Agostini, M.¹, Author
Bakalyarov, A. M.¹, Author
Balata, M.¹, Author
Barabanov, I.¹, Author
Baudis, L.¹, Author
Bauer, C.¹, Author
Bellotti, E.¹, Author
Belogurov, S.¹, Author
Bettini, A.¹, Author
Bezrukov, L.¹, Author
Biernat, J.¹, Author
Bode, T.¹, Author
Borowicz, D.¹, Author
Brudanin, V.¹, Author
Brugnera, R.¹, Author
Caldwell, A.¹, Author
Cattadori, C.¹, Author
Chernogorov, A.¹, Author
Comellato, T.¹, Author
D'Andrea, V.¹, Author
Demidova, E. V.¹, AuthorDi Marco, N.¹, AuthorDomula, A.¹, AuthorDoroshkevich, E.¹, AuthorEgorov, V.¹, AuthorFalkenstein, R.¹, AuthorGangapshev, A.¹, AuthorGarfagnini, A.¹, AuthorGrabmayr, P.¹, AuthorGurentsov, V.¹, AuthorGusev, K.¹, AuthorHakenmüller, J.¹, AuthorHegai, A.¹, AuthorHeisel, M.¹, AuthorHemmer, S.¹, AuthorHiller, R.¹, AuthorHofmann, W.¹, AuthorHult, M.¹, AuthorInzhechik, L. V.¹, AuthorJanicskó Csáthy, J.¹, AuthorJochum, J.¹, AuthorJunker, M.¹, AuthorKazalov, V.¹, AuthorKermaidic, Y.¹, AuthorKihm, T.¹, AuthorKirpichnikov, I. V.¹, AuthorKirsch, A.¹, AuthorKish, A.¹, AuthorKlimenko, A.¹, AuthorKneißl, R.¹, AuthorKnöpfle, K. T.¹, AuthorKochetov, O.¹, AuthorKornoukhov, V. N.¹, AuthorKuzminov, V. V.¹, AuthorLaubenstein, M.¹, AuthorLazzaro, A.¹, AuthorLindner, M.¹, AuthorLippi, I.¹, AuthorLubashevskiy, A.¹, AuthorLubsandorzhiev, B.¹, AuthorLutter, G.¹, AuthorMacolino, C.¹, AuthorMajorovits, B.¹, AuthorManeschg, W.¹, AuthorMiloradovic, M.¹, AuthorMingazheva, R.¹, AuthorMisiaszek, M.¹, AuthorMoseev, P.¹, AuthorNemchenok, I.¹, AuthorPanas, K.¹, AuthorPandola, L.¹, AuthorPelczar, K.¹, AuthorPertoldi, L.¹, AuthorPullia, A.¹, AuthorRansom, C.¹, AuthorRiboldi, S.¹, AuthorRumyantseva, N.¹, AuthorSada, C.¹, AuthorSalamida, F.¹, AuthorSchmitt, C.¹, AuthorSchneider, B.¹, AuthorSchönert, S.¹, AuthorSchütz, A-K.¹, AuthorSchulz, O.¹, AuthorSchwingenheuer, B.¹, AuthorSelivanenko, O.¹, AuthorShevchik, E.¹, AuthorShirchenko, M.¹, AuthorSimgen, H.¹, AuthorSmolnikov, A.¹, AuthorStanco, L.¹, AuthorVanhoefer, L.¹, AuthorVasenko, A. A.¹, AuthorVeresnikova, A.¹, Authorvon Sturm, K.¹, AuthorWagner, V.¹, AuthorWegmann, A.¹, AuthorWester, T.¹, AuthorWiesinger, C.¹, AuthorWojcik, M.¹, AuthorYanovich, E.¹, AuthorZhitnikov, I.¹, AuthorZhukov, S. V.¹, AuthorZinatulina, D.¹, AuthorZschocke, A.¹, AuthorZsigmond, A. J.¹, AuthorZuber, K.¹, AuthorZuzel, G.¹, Author more..

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1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650

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Free keywords: GERDA

Abstract: The GERDA experiment searches for the lepton number violating neutrinoless double beta decay of $^{76}$Ge ($^{76}$Ge $\rightarrow$ $^{76}$Se + 2e$^-$) operating bare Ge diodes with an enriched $^{76}$Ge fraction in liquid argon. The exposure for BEGe-type detectors is increased threefold with respect to our previous data release. The BEGe detectors feature an excellent background suppression from the analysis of the time profile of the detector signals. In the analysis window a background level of $1.0_{-0.4}^{+0.6}\cdot10^{-3}$ cts/(keV$\cdot$kg$\cdot$yr) has been achieved; if normalized to the energy resolution this is the lowest ever achieved in any 0$νββ$ experiment. No signal is observed and a new 90 \% C.L. lower limit for the half-life of $8.0\cdot10^{25}$ yr is placed when combining with our previous data. The median expected sensitivity assuming no signal is $5.8\cdot10^{25}$ yr.

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Dates: Date issued: 2018

Publication Status: Issued

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Identifiers: eDoc: 747292
URI: https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2018-335
URI: http://arXiv.org/abs/arxiv:1803.11100
URI: https://inspirehep.net/search?p=find+eprint+1803.11100
Other: MPP-2018-335

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Title: Physical Review Letters

Alternative Title : Phys.Rev.Lett.

Source Genre: Journal

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Pages: - Volume / Issue: (120) Sequence Number: - Start / End Page: 132503 Identifier: -