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19 March 2024
 
  » arxiv » 1709.1980

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The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND)
LEGEND Collaboration ; N. Abgrall ; A. Abramov ; N. Abrosimov ; I. Abt ; M. Agostini ; M. Agartioglu ; A. Ajjaq ; S.I. Alvis ; F.T. Avignone III ; X. Bai ; M. Balata ; I. Barabanov ; A.S. Barabash ; P.J. Barton ; L. Baudis ; L. Bezrukov ; T. Bode ; A. Bolozdynya ; D. Borowicz ; A. Boston ; H. Boston ; S.T.P. Boyd ; R. Breier ; V. Brudanin ; R. Brugnera ; M. Busch ; M. Buuck ; A. Caldwell ; T.S. Caldwell ; T. Camellato ; M. Carpenter ; C. Cattadori ; J. Cederkäll ; Y.-D. Chan ; S. Chen ; A. Chernogorov ; C.D. Christofferson ; P.-H. Chu ; R.J. Cooper ; C. Cuesta ; E.V. Demidova ; Z. Deng ; M. Deniz ; J.A. Detwiler ; N. Di Marco ; A. Domula ; Q. Du ; Yu. Efremenko ; V. Egorov ; S.R. Elliott ; D. Fields ; F. Fischer ; A. Galindo-Uribarri ; A. Gangapshev ; A. Garfagnini ; T. Gilliss ; M. Giordano ; G.K. Giovanetti ; M. Gold ; P. Golubev ; C. Gooch ; P. Grabmayr ; M.P. Green ; J. Gruszko ; I.S. Guinn ; V.E. Guiseppe ; V. Gurentsov ; Y. Gurov ; K. Gusev ; J. Hakenmüeller ; L. Harkness-Brennan ; Z.R. Harvey ; C.R. Haufe ; L. Hauertmann ; D. Heglund ; L. Hehn ; A. Heinz ; R. Hiller ; J. Hinton ; R. Hodak ; W. Hofmann ; S. Howard ; M.A. Howe ; M. Hult ; L.V. Inzhechik ; J. Janicskó Csáthy ; R. Janssens ; M. Ješkovský ; J. Jochum ; H.T. Johansson ; D. Judson ; M. Junker ; J. Kaizer ; K. Kang ; V. Kazalov ; Y.Kermaïdic ; F. Kiessling ; A. Kirsch ; A. Kish ; A. Klimenko ; K.T. K.T.Knöpfle ; O. Kochetov ; S.I. Konovalov ; I. Kontul ; V.N. Kornoukhov ; T. Kraetzschmar ; K. Kröninger ; A. Kumar ; V.V. Kuzminov ; K. Lang ; M. Laubenstein ; A. Lazzaro ; Y.L. Li ; Y.-Y. Li ; H.B. Li ; S.T. Lin ; M. Lindner ; I. Lippi ; S.K. Liu ; X. Liu ; J. Liu ; D. Loomba ; A. Lubashevskiy ; B. Lubsandorzhiev ; G. Lutter ; H. Ma ; B. Majorovits ; F. Mamedov ; R.D. Martin ; R. Massarczyk ; J.A.J. Matthews ; N. McFadden ; D.-M. Mei ; H. Mei ; S.J. Meijer ; D. Mengoni ; S. Mertens ; W. Miller ; M. Miloradovic ; R. Mingazheva ; M. Misiaszek ; P. Moseev ; J. Myslik ; I. Nemchenok ; T. Nilsson ; P. Nolan ; C. O'Shaughnessy ; G. Othman ; K. Panas ; L. Pandola ; L. Papp ; K. Pelczar ; D. Peterson ; W. Pettus ; A.W.P. Poon ; P.P. Povinec ; A. Pullia ; X.C. Quintana ; D.C. Radford ; J. Rager ; C. Ransom ; F. Recchia ; A.L. Reine ; S. Riboldi ; K. Rielage ; S. Rozov ; N.W. Rouf ; E. Rukhadze ; N. Rumyantseva ; R. Saakyan ; E. Sala ; F. Salamida ; V. Sandukovsky ; G. Savard ; S. Schönert ; A.-K. Schütz ; O. Schulz ; M. Schuster ; B. Schwingenheuer ; O. Selivanenko ; B. Sevda ; B. Shanks ; E. Shevchik ; M. Shirchenko ; F. Simkovic ; L. Singh ; V. Singh ; M. Skorokhvatov ; K. Smolek ; A. Smolnikov ; A. Sonay ; M. Spavorova ; I. Stekl ; D. Stukov ; D. Tedeschi ; J. Thompson ; T. Van Wechel ; R.L. Varner ; A.A. Vasenko ; S. Vasilyev ; A. Veresnikova ; K. Vetter ; K. von Sturm ; K. Vorren ; M. Wagner ; G.-J. Wang ; D. Waters ; W.-Z. Wei ; T. Wester ; B.R. White ; C. Wiesinger ; J.F. Wilkerson ; M. Willers ; C. Wiseman ; M. Wojcik ; H.T. Wong ; J. Wyenberg ; W. Xu ; E. Yakushev ; G. Yang ; C.-H. Yu ; Q. Yue ; V. Yumatov ; J. Zeman ; Z. Zeng ; I. Zhitnikov ; B. Zhu ; D. Zinatulina ; A. Zschocke ; A.J. Zsigmond ; K. Zuber ; G. Zuzel ;
Date 6 Sep 2017
AbstractThe observation of neutrinoless double-beta decay (0${ u}{eta}{eta}$) would show that lepton number is violated, reveal that neutrinos 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 $sim$0.1 count /(FWHM$cdot$t$cdot$yr) in the region of the signal. The current generation $^{76}$Ge 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 0${ u}{eta}{eta}$ signal region of all 0${ u}{eta}{eta}$ experiments. Building on this success, the LEGEND collaboration has been formed to pursue a tonne-scale $^{76}$Ge experiment. The collaboration aims to develop a phased 0${ u}{eta}{eta}$ experimental program with discovery potential at a half-life approaching or at $10^{28}$ years, using existing resources as appropriate to expedite physics results.
Source arXiv, 1709.1980
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