{"paper":{"title":"First Search for Lorentz and CPT Violation in Double Beta Decay with EXO-200","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"nucl-ex","authors_text":"A. Burenkov, A. Craycraft, A. Der Mesrobian-Kabakian, A. Dolgolenko, A. Johnson, A. Karelin, A. Kuchenkov, A. Odian, A. Piepke, A. Pocar, A. Schubert, A. Waite, B. Cleveland, B. Mong, C. Chambers, C. G. Davis, C. Hall, C. Y. Prescott, D. Beck, D. Fudenberg, D. Moore, D. Sinclair, D. S. Leonard, E. Smith, EXO-200 Collaboration: J. B. Albert, F. Reti\\'ere, G. F. Cao, G. Gratta, I. Ostrovskiy, J. Davis, J. Dilling, J. Farine, J. J. Russell, J. Ling, J.-L. Vuilleumier, J. S. D\\'iaz, J. Walton, J. Wood, K. Graham, K. S. Kumar, K. Twelker, L. J. Kaufman, L. J. Wen, L. Yang, M. Breidenbach, M. Coon, M. Danilov, M. Dunford, M. G. Marino, M. Hughes, M. J. Dolinski, M. J. Jewell, M. Tarka, M. Weber, O. Njoya, O.Ya. Zeldovich, P. C. Rowson, P. Fierlinger, P. S. Barbeau, P. Vogel, R. DeVoe, R. Gornea, R. Killick, R. Kr\\\"ucken, R. MacLellan, R. Nelson, R. Tsang, S. Delaquis, S. Feyzbkhsh, S. Homiller, S. J. Daugherty, S. Johnston, S. Kravitz, T. Brunner, T. Daniels, T. Didberidze, T. Koffas, T. N. Johnson, T. Tolba, T. Walton, U. Wichoski, V. Belov, V. Stekhanov, W. Fairbank Jr., W. Feldmeier, X. S. Jiang, Y. H. Lin, Y.-R. Yen","submitted_at":"2016-01-27T05:07:08Z","abstract_excerpt":"A search for Lorentz- and CPT-violating signals in the double beta decay spectrum of $^{136}$Xe has been performed using an exposure of 100 kg$\\cdot$yr with the EXO-200 detector. No significant evidence of the spectral modification due to isotropic Lorentz-violation was found, and a two-sided limit of $-2.65 \\times 10^{-5 } \\; \\textrm{GeV} < \\mathring{a}^{(3)}_{\\text{of}} < 7.60 \\times 10^{-6} \\; \\textrm{GeV}$ (90% C.L.) is placed on the relevant coefficient within the Standard-Model Extension (SME). This is the first experimental study of the effect of the SME-defined oscillation-free and mom"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.07266","kind":"arxiv","version":2},"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"}