{"paper":{"title":"Background Model for the Majorana Demonstrator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Galindo-Uribarri, A.G. Schubert, A. Hegai, A. L. Hallin, A. M. Suriano, A. R. Young, A. S. Barabash, A. S. Caldwell, A. W.P. Poon, B. D. LaFerriere, B. R. White, B. Shanks, C. Cuesta, C. D. Christofferson, C. H. Yu, C. O'Shaughnessy, C. Wiseman, D. Byram, D. C. Combs, D. C. Radford, D. G. Phillips II, E. Aguayo, E. Romero-Romero, E. W. Hoppe, E. Yakushev, F. E. Bertrand, F. M. Fraenkle, F.T. Avignone III, G. K. Giovanetti, H. Ejiri, J. A. Detwiler, J. C. Loach, J. E. Fast, J. E. Trimble, J. F. Wilkerson, J. Goett, J. Gruszko, J. Leon, J. L. Orrell, J. MacMullin, J. Rager, J. Thompson, K. Gusev, K. J. Keeter, K. J. Snavely, K. Pushkin, K. Rielage, K. Vetter, K. Vorren, L. E. Leviner, M. A. Howe, M. Boswell, M. Busch, M.C. Ronquest, M.F. Kidd, M. Nomachi, M. P. Green, M. Shirchenko, N. Abgrall, N. R. Overman, N. Snyder, O. Kochetov, P. Finnerty, P. J. Doe, R.D. Martin, R. G. H. Robertson, R. Hazama, R. Henning, R. L. Varner, R. T. Kouzes, S. Howard, S. I. Konovalov, S. MacMullin, S. Meijer, S. Mertens, S. R. Elliott, S. Vasilyev, T. Shima, V. Brudanin, V. Egorov, V. E. Guiseppe, V. Timkin, V. Yumatov, W. Tornow, W. Xu, Y-D. Chan, Yu. Efremenko","submitted_at":"2014-05-06T17:23:26Z","abstract_excerpt":"The Majorana Collaboration is constructing a system containing 40 kg of HPGe detectors to demonstrate the feasibility and potential of a future tonne-scale experiment capable of probing the neutrino mass scale in the inverted-hierarchy region. To realize this, a major goal of the Majorana Demonstrator is to demonstrate a path forward to achieving a background rate at or below 1 cnt/(ROI-t-y) in the 4 keV region of interest around the Q-value at 2039 keV. This goal is pursued through a combination of a significant reduction of radioactive impurities in construction materials with analytical met"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.1370","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}