Dark matter sensitivities of the Majorana Demonstrator

G. K. Giovanetti, E. Aguayo, F. T. Avignone, H. O. Back, A. S. Barabash, J. R. Beene, M. Bergevin, F. E. Bertrand, M. Boswell, V. Brudanin, M. Busch, Y. D. Chan, C. D. Christofferson, J. I. Collar, D. C. Combs, R. J. Cooper, J. A. Detwiler, P. J. Doe, Yu Efremenko, V. EgorovH. Ejiri, S. R. Elliott, J. Esterline, J. E. Fast, N. Fields, P. Finnerty, F. M. Fraenkle, V. M. Gehman, M. P. Green, V. E. Guiseppe, K. Gusey, A. L. Hallin, R. Hazama, R. Henning, E. W. Hoppe, M. Horton, S. Howard, M. A. Howe, R. A. Johnson, K. J. Keeter, C. Keller, M. F. Kidd, A. Knecht, O. Kochetov, S. I. Konovalov, R. T. Kouzes, B. D. LaFerriere, B. H. LaRoque, J. Leon, L. E. Leviner, J. C. Loach, S. MacMullin, M. G. Marino, R. D. Martin, D. M. Mei, J. H. Merriman, M. L. Miller, L. Mizouni, M. Nomachi, J. L. Orrell, N. R. Overman, D. G. Phillips, A. W.P. Poon, G. Perumpilly, G. Prior, D. C. Radford, K. Rielage, R. G.H. Robertson, M. C. Ronquest, A. G. Schubert, T. Shima, M. Shirchenko, K. J. Snavely, D. Steele, J. Strain, K. Thomas, V. Timkin, W. Tornow, I. Vanyushin, R. L. Varner, K. Vetter, K. Vorren, J. F. Wilkerson, E. Yakushev, A. R. Young, C. H. Yu, V. Yumatov, C. Zhang

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Abstract

The Majorana Demonstrator is an array of natural and enriched high purity germanium detectors that will search for the neutrinoless double-beta decay of Germanium-76 and perform a search for weakly interacting massive particles with masses below 10 GeV. To reach the background rate goal in the neutrinoless double-beta decay region of interest of 4 counts/keV/t/y, the DEMONSTRATOR will utilize a number of background reduction strategies, including a time-correlated event cut for 68Ge that requires a sub-keV energy threshold. This low energy threshold allows the DEMONSTRATOR to extend its physics reach to include a search for light WIMPs. We will discuss the detector systems and data analysis techniques required to achieve sub-keV thresholds as well as present the projected dark matter sensitivities of the Majorana Demonstrator.

Original languageEnglish
Article number012014
JournalJournal of Physics: Conference Series
Volume375
Issue numberPART 2
DOIs
StatePublished - 2012
Event12th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2011 - Munich, Germany
Duration: Sep 5 2011Sep 9 2011

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