The MAJORANA DEMONSTRATOR for 0νββ: Current Status and Future Plans

M. P. Green, N. Abgrall, E. Aguayo, F. T. Avignone, A. S. Barabash, F. E. Bertrand, M. Boswell, V. Brudanin, M. Busch, D. Byram, A. S. Caldwell, Y. D. Chan, C. D. Christofferson, D. C. Combs, C. Cuesta, J. A. Detwiler, P. J. Doe, Yu Efremenko, V. Egorov, H. EjiriS. R. Elliott, J. E. Fast, P. Finnerty, F. M. Fraenkle, A. Galindo-Uribarri, G. K. Giovanetti, J. Goett, J. Gruszko, V. E. Guiseppe, K. Gusev, A. L. Hallin, R. Hazama, A. Hegai, R. Henning, E. W. Hoppe, S. Howard, M. A. Howe, K. J. Keeter, M. F. Kidd, O. Kochetov, S. I. Konovalov, R. T. Kouzes, B. D. Laferriere, J. Leon, L. E. Leviner, J. C. Loach, J. MacMullin, S. MacMullin, R. D. Martin, S. Meijer, S. Mertens, M. Nomachi, J. L. Orrell, C. O'Shaughnessy, N. R. Overman, D. G. Phillips, A. W.P. Poon, K. Pushkin, D. C. Radford, J. Rager, K. Rielage, R. G.H. Robertson, E. Romero-Romero, M. C. Ronquest, A. G. Schubert, B. Shanks, T. Shima, M. Shirchenko, K. J. Snavely, N. Snyder, A. M. Suriano, J. Thompson, V. Timkin, W. Tornow, J. E. Trimble, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, A. R. Young, C. H. Yu, V. Yumatov

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Abstract

The MAJORANA DEMONSTRATOR will search for neutrinoless-double-beta decay (0νββ) in 76Ge, while establishing the feasibility of a future tonne-scale germanium-based 0νββ experiment, and performing searches for new physics beyond the Standard Model. The experiment, currently under construction at the Sanford Underground Research Facility in Lead, SD, will consist of a pair of modular high-purity germanium detector arrays housed inside of a compact copper, lead, and polyethylene shield. Through a combination of strict materials qualifications and assay, low-background design, and powerful background rejection techniques, the Demonstrator aims to achieve a background rate in the 0νββ region of interest (ROI) of no more than 3 counts in the 0νββ-decay ROI per tonne of target isotope per year (cnts/(ROI-t-y)). The current status of the Demonstrator is discussed, as are plans for its completion.

Original languageEnglish
Pages (from-to)232-240
Number of pages9
JournalPhysics Procedia
Volume61
DOIs
StatePublished - 2015
Event13th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2013 - , United States
Duration: Sep 8 2013Sep 13 2013

Funding

We acknowledge support from the Office of Nuclear Physics in the DOE Office of Science, the Particle Astrophysics Program of the National Science Foundation, and the Russian Foundation for Basic Research. We acknowledge the support of the Sanford Underground Research Facility administration and staff.

FundersFunder number
DOE Office of Science
Office of Nuclear Physics
National Science Foundation
Russian Foundation for Basic Research

    Keywords

    • Germanium detector
    • Majorana
    • Neutrinoless double beta decay

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