Title: The large enriched germanium experiment for neutrinoless double beta decay (LEGEND)
Authors: ABGRALL N.ABRAMOV A.ABROSIMOV NABT I.AGARTIOGLU M.AGOSTINI M.AJJAQ A.ALVIS S. I.AVIGNONE F. T.BAI X.BALATA M.BARABANOV I.BARABASH A. S.BARTON P. J.BAUDIS L.BEZRUKOV L.BODE T.BOLOZDYNYA A.BOROWICZ D.BOSTON A.BOSTON H.BOYD S. T. P.BREIER R.BRUDANIN V.BRUGNERA R.BUSCH M.BUUCK M.CALDWELL A.CALDWELL T. S.CAMELLATO T.CARPENTER M.CATTADORI CCEDERKÄLL J.CHAN Y.-D.CHEN S.CHERNOGOROV A.CHRISTOFFERSON C. D.CHU P.-H.COOPER R. J.CUESTA C.DEMIDOVA E.V.DENG ZDENIZ M.DETWILER J. A.DI MARCO N.DOMULA A.R.DU Q.EFREMENKO YU.EGOROV V.ELLIOTT S. R.FIELDS D.FISCHER F.GALINDO-URIBARRI A.GANGAPSHEV A.GARFAGNINI A.GILLISS T.GIORDANO M.GIOVANETTI G. K.GOLD M.GOLUBEV PGOOCH C.GRABMAYR P.GREEN M. P.GRUSZKO J.GUINN I. S.GUISEPPE V. E.GURENTSOV V.GUROV Y.GUSEV K.HAKENMÜLLER J.HARKNESS-BRENNAN L.HARVEY Z. R.HAUERTMANN L.HAUFE C. R.HEGLUND D.HEHN L.HEINZ A.HILLER R.HINTON J.HODAK R.HOFMANN W.HOWARD S.HOWE M. A.HULT MIKAELINZHECHIK L.JANICSKO J.JANSSENS R.JESKOVSKY MJOCHUM J.JOHANSSON H.JUDSON D.JUNKER M.KAIZER J.KANG K.KAZALOV V.KERMADIC Y.KIESSLING F.KIRSCH A.KISH A.KLIMENKO A.KNOEPFLE K.T.KOCHETOV O.KONOVALOV S. I.KONTUL I.KORNOUKHOV V.KRAETZSCHMAR T.KROENINGER K.KUMAR A.KUZMINOV V.LANG K.LAUBENSTEIN M.LAZZARO A.LI H. B.LI Y. J.LI Y.-Y.LIN S. T.LINDNER M.LIPPI I.LIU J.LIU S. K.LIU X.LOOMBA D.LUBASHEVSKY A.LUBSANDORZHIEV B.LUTTER GUILLAUMEMA H.MAJOROVITS B.MAMEDOV F.MARTIN R. D.MASSARCZYK R.MATTHEWS J. A. J.MCFADDEN M.MEI D.-M.MEI H.MEIJER S. J.MENGONI D.MERTENS S.MILLER W.MILORADOVIC M.MINGAZHEVA R.MISIASZEK M.MOSEEV P.MYSLIK J. W.NEMCHENOK I.NILSSON T.NOLAN P.O'SHAUGHNESSY C.OTHMAN G.PANAS K.PANDOLA L.PAPP L.PELCZAR K.PETERSON D.PETTUS W.POON A. W. P.POVINEC P.PULLIA A.QUINTANA X. C.RADFORD D. C.RAGER J.RANSOM C.RECCHIA F.REINE A. L.RIBOLDI S.RIELAGE K.ROUF N. W.ROZOV S.RUKHADZE E.RUMYANTSEVA N.SAAKYAN R.SALA E.SALAMIDA F.SANDUKOVSKY V.SAVARD G.SCHOENERT S.SCHULZ O.SCHUSTER MSCHWINGENHEUER B.SCHÜTZ A. K.SELIVANENKO O.SEVDA B.SHANKS B.SHEVCHIK E.SHIRCHENKO M.SIMKOVIC F.SINGH L.SINGH V.SKOROKHVATOV M.SMOLEK K.SMOLNIKOV A.SONAY A.SPAVOROVA M.STEKL I.STUKOV D.TEDESCHI D.THOMPSON J.VAN WECHEL T.VARNER R. L.VASENKO A. A.VASILYEV S.VERESNIKOVA A.VETTER KAIVON STURM K.VORREN K.WAGNER M.WANG G. J.WATERS D.WEI W. - Z.WESTER T.WHITE B. R.WIESINGER C.WILKERSON J. F.WILLERS M.WISEMAN C.WOJCIK M.WONG H. T.WYENBERG J.XU W.YAKUSHEV E.YANG G.YU C. - H.YUE Q.YUMATOV V.ZEMAN J.ZENG Z.ZHITNIKOV I.ZHU B.ZINATULINA D.ZSCHOCKE A.ZSIGMOND A. J.ZUBER K.ZUZEL G.
Citation: AIP CONFERENCE PROCEEDINGS vol. 1894 no. 1 p. 020027
Publisher: AMERICAN INSTITUTE OF PHYSICS
Publication Year: 2017
JRC N°: JRC107882
ISSN: 0094-243X (online)
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC107882
DOI: 10.1063/1.5007652
Type: Articles in periodicals and books
Abstract: The observation of neutrinoless double-beta decay (0νββ) would show that lepton number is violated, reveal that neu-trinos are Majorana particles, and provide information on neutrino mass. A discovery-capable experiment covering the inverted ordering region, with effective Majorana neutrino masses of 15 − 50 meV, will require a tonne-scale experiment with excellent energy resolution and extremely low backgrounds, at the level of ∼0.1 count /(FWHM·t·yr) in the region of the signal. The current generation 76Ge experiments GERDA and the Majorana Demonstrator, utilizing high purity Germanium detectors with an intrinsic energy resolution of 0.12%, have achieved the lowest backgrounds by over an order of magnitude in the 0νββ signal region of all 0νββ experiments. Building on this success, the LEGEND collaboration has been formed to pursue a tonne-scale 76Ge experiment. The collaboration aims to develop a phased 0νββ experimental program with discovery potential at a half-life approaching or at 1028 years, using existing resources as appropriate to expedite physics results.
JRC Directorate:Nuclear Safety and Security

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