{"paper":{"title":"emiT: an apparatus to test time reversal invariance in polarized neutron decay","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Garcia, A. K. Thompson, B. K. Fujikawa, C. A. Trull, F. E. Wietfeldt, G. L. Jones, H. P. Mumm, J. F. Wilkerson, J. S. Nico, K. M. Sundqvist, K. P. Coulter, L. Grout, L. J. Broussard, L. J. Lising, L. P. Parazzoli, M. Howe, M. S. Dewey, R. C. Welsh, R. G. H. Robertson, R. L. Cooper, S. J. Freedman, S. R. Hwang, T. E. Chupp","submitted_at":"2004-02-09T13:58:26Z","abstract_excerpt":"We describe an apparatus used to measure the triple-correlation term (\\D \\hat{\\sigma}_n\\cdot p_e\\times p_\\nu) in the beta-decay of polarized neutrons. The \\D-coefficient is sensitive to possible violations of time reversal invariance. The detector has an octagonal symmetry that optimizes electron-proton coincidence rates and reduces systematic effects. A beam of longitudinally polarized cold neutrons passes through the detector chamber, where a small fraction beta-decay. The final-state protons are accelerated and focused onto arrays of cooled semiconductor diodes, while the coincident electro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0402010","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"}