The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND)
Abstract
The observation of neutrinoless double-beta decay (0) 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 0.1 count /(FWHMtyr) in the region of the signal. The current generation 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 signal region of all 0 experiments. Building on this success, the LEGEND collaboration has been formed to pursue a tonne-scale Ge experiment. The collaboration aims to develop a phased 0 experimental program with discovery potential at a half-life approaching or at years, using existing resources as appropriate to expedite physics results.
Keywords
Cite
@article{arxiv.1709.01980,
title = {The Large Enriched Germanium Experiment for Neutrinoless Double Beta Decay (LEGEND)},
author = {LEGEND Collaboration and N. Abgrall and A. Abramov and N. Abrosimov and I. Abt and M. Agostini and M. Agartioglu and A. Ajjaq and S. I. Alvis and F. T. Avignone and X. Bai and M. Balata and I. Barabanov and A. S. Barabash and P. J. Barton and L. Baudis and L. Bezrukov and T. Bode and A. Bolozdynya and D. Borowicz and A. Boston and H. Boston and S. T. P. Boyd and R. Breier and V. Brudanin and R. Brugnera and M. Busch and M. Buuck and A. Caldwell and T. S. Caldwell and T. Camellato and M. Carpenter and C. Cattadori and J. Cederkäll and Y. -D. Chan and S. Chen and A. Chernogorov and C. D. Christofferson and P. -H. Chu and R. J. Cooper and C. Cuesta and E. V. Demidova and Z. Deng and M. Deniz and J. A. Detwiler and N. Di Marco and A. Domula and Q. Du and Yu. Efremenko and V. Egorov and S. R. Elliott and D. Fields and F. Fischer and A. Galindo-Uribarri and A. Gangapshev and A. Garfagnini and T. Gilliss and M. Giordano and G. K. Giovanetti and M. Gold and P. Golubev and C. Gooch and P. Grabmayr and M. P. Green and J. Gruszko and I. S. Guinn and V. E. Guiseppe and V. Gurentsov and Y. Gurov and K. Gusev and J. Hakenmüeller and L. Harkness-Brennan and Z. R. Harvey and C. R. Haufe and L. Hauertmann and D. Heglund and L. Hehn and A. Heinz and R. Hiller and J. Hinton and R. Hodak and W. Hofmann and S. Howard and M. A. Howe and M. Hult and L. V. Inzhechik and J. Janicskó Csáthy and R. Janssens and M. Ješkovský and J. Jochum and H. T. Johansson and D. Judson and M. Junker and J. Kaizer and K. Kang and V. Kazalov and Y. Kermaïdic and F. Kiessling and A. Kirsch and A. Kish and A. Klimenko and K. T. K. T. Knöpfle and O. Kochetov and S. I. Konovalov and I. Kontul and V. N. Kornoukhov and T. Kraetzschmar and K. Kröninger and A. Kumar and V. V. Kuzminov and K. Lang and M. Laubenstein and A. Lazzaro and Y. L. Li and Y. -Y. Li and H. B. Li and S. T. Lin and M. Lindner and I. Lippi and S. K. Liu and X. Liu and J. Liu and D. Loomba and A. Lubashevskiy and B. Lubsandorzhiev and G. Lutter and H. Ma and B. Majorovits and F. Mamedov and R. D. Martin and R. Massarczyk and J. A. J. Matthews and N. McFadden and D. -M. Mei and H. Mei and S. J. Meijer and D. Mengoni and S. Mertens and W. Miller and M. Miloradovic and R. Mingazheva and M. Misiaszek and P. Moseev and J. Myslik and I. Nemchenok and T. Nilsson and P. Nolan and C. O'Shaughnessy and G. Othman and K. Panas and L. Pandola and L. Papp and K. Pelczar and D. Peterson and W. Pettus and A. W. P. Poon and P. P. Povinec and A. Pullia and X. C. Quintana and D. C. Radford and J. Rager and C. Ransom and F. Recchia and A. L. Reine and S. Riboldi and K. Rielage and S. Rozov and N. W. Rouf and E. Rukhadze and N. Rumyantseva and R. Saakyan and E. Sala and F. Salamida and V. Sandukovsky and G. Savard and S. Schönert and A. -K. Schütz and O. Schulz and M. Schuster and B. Schwingenheuer and O. Selivanenko and B. Sevda and B. Shanks and E. Shevchik and M. Shirchenko and F. Simkovic and L. Singh and V. Singh and M. Skorokhvatov and K. Smolek and A. Smolnikov and A. Sonay and M. Spavorova and I. Stekl and D. Stukov and D. Tedeschi and J. Thompson and T. Van Wechel and R. L. Varner and A. A. Vasenko and S. Vasilyev and A. Veresnikova and K. Vetter and K. von Sturm and K. Vorren and M. Wagner and G. -J. Wang and D. Waters and W. -Z. Wei and T. Wester and B. R. White and C. Wiesinger and J. F. Wilkerson and M. Willers and C. Wiseman and M. Wojcik and H. T. Wong and J. Wyenberg and W. Xu and E. Yakushev and G. Yang and C. -H. Yu and Q. Yue and V. Yumatov and J. Zeman and Z. Zeng and I. Zhitnikov and B. Zhu and D. Zinatulina and A. Zschocke and A. J. Zsigmond and K. Zuber and G. Zuzel},
journal= {arXiv preprint arXiv:1709.01980},
year = {2018}
}
Comments
Proceedings of the MEDEX'17 meeting (Prague, May 29 - June 2, 2017)