Status update of the majorana demonstrator neutrinoless double beta decay experiment

J. Gruszko, M. Buuck, C. Cuesta, J. A. Detwiler, I. S. Guinn, J. Leon, R. G.H. Robertson, N. Abgrall, A. W. Bradley, Y. D. Chan, S. Mertens, A. W.P. Poon, I. J. Arnquist, E. W. Hoppe, R. T. Kouzes, B. D. LaFerriere, J. L. Orrell, F. T. Avignone, A. S. Barabash, S. I. KonovalovV. Yumatov, F. E. Bertrand, A. Galindo-Uribarri, D. C. Radford, R. L. Varner, B. R. White, C. H. Yu, V. Brudanin, M. Shirchenko, S. Vasilyev, E. Yakushev, I. Zhitnikov, M. Busch, D. Byram, B. R. Jasinski, N. Snyder, A. S. Caldwell, C. D. Christofferson, C. Dunagan, S. Howard, A. M. Suriano, P. H. Chu, S. R. Elliott, J. Goett, R. Massarczyk, K. Rielage, W. Xu, Yu Efremenko, H. Ejiri, T. Gilliss, G. K. Giovanetti, R. Henning, M. A. Howe, J. MacMullin, S. J. Meijer, C. O'Shaughnessy, J. Rager, B. Shanks, J. E. Trimble, K. Vorren, M. P. Green, V. E. Guiseppe, D. Tedeschi, C. Wiseman, K. J. Keeter, M. F. Kidd, R. D. Martin, E. Romero-Romero, K. Vetter, J. F. Wilkerson

Research output: Contribution to conferencePaperpeer-review

Abstract

Neutrinoless double beta decay searches play a major role in determining neutrino properties, in particular the Majorana or Dirac nature of the neutrino and the absolute scale of the neutrino mass. The consequences of these searches go beyond neutrino physics, with implications for Grand Unification and leptogenesis. The Majorana Collaboration is assembling a low-background array of high purity Germanium (HPGe) detectors to search for neutrinoless double-beta decay in 76Ge. The Majorana Demonstrator, which is currently being constructed and commissioned at the Sanford Underground Research Facility in Lead, South Dakota, will contain 44 kg (30 kg enriched in 76Ge) of HPGe detectors. Its primary goal is to demonstrate the scalability and background required for a tonne-scale Ge experiment. This is accomplished via a modular design and projected background of less than 3 cnts/tonne-yr in the region of interest. The experiment is currently taking data with the first of its enriched detectors.

Original languageEnglish
StatePublished - 2020
Externally publishedYes
Event2015 Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2015 - Ann Arbor, United States
Duration: 4 Aug 20158 Aug 2015

Conference

Conference2015 Meeting of the Division of Particles and Fields of the American Physical Society, DPF 2015
Country/TerritoryUnited States
CityAnn Arbor
Period4/08/158/08/15

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