{"paper":{"title":"Ortho-positronium observation in the Double Chooz Experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Cabrera, A.C. Schilithz, A. Etenko, A. Hourlier, A. Letourneau, A. Meregaglia, A. Minotti, A. Onillon, A. Osborn, A.P. Collin, A. Porta, A.S. Cucoanes, A. Stahl, A. Stuken, A. Tonazzo, B. Lubsandorzhiev, B. Reinhold, B. Rybolt, C. Buck, C.E. Lane, C. Grant, C. Jollet, C. Mariani, C. Palomares, C. Veyssiere, C. Wiebusch, D. Dietrich, D. Franco, D. Kryn, D. Lhuillier, D.M. Kaplan, D. Shrestha, E. Baussan, E. Blucher, E. Caden, E. Chauveau, E. Conover, E. Damon, E. Kemp, E. Smith, F. Kaether, F. Suekane, F. von Feilitzsch, F. Yermia, G.A. Horton-Smith, G. Mention, G. Pronost, G. Valdiviesso, G. Yang, H. de Kerret, H. Furuta, H.H. Trinh Thi, H.P. Lima Jr, H. Watanabe, I. Bekman, I. Gil-Botella, I.M. Pepe, I. Stancu, J. Busenitz, J.C. Barriere, J.C. dos Anjos, J. Dhooghe, J. Felde, J. Haser, J.I. Crespo-Anadon, J. Jochum, J. Maeda, J. Maricic, J. Martino, J.M. Conrad, J.M. Lopez-Castano, J.M. LoSecco, J. Reichenbacher, J. Spitz, J.V. Dawson, K. Crum, K. Terao, L. Bezrukov, L. Camilleri, L.F.F. Stokes, L.F.G. Gonzalez, L. Giot, L. Goodenough, L.N. Kalousis, L. Oberauer, L. Winslow, M. Bergevin, M. Cerrada, M.C. Goodman, M. Dracos, M. Elnimr, M. Fallot, M. Franke, M. Goger-Neff, M. Hofmann, M.H. Shaevitz, M. Ishitsuka, M. Kuze, M. Lindner, M. Obolensky, M. Rohling, M. Skorokhvatov, M. Strait, M. Vivier, M. Wurm, N. Haag, N. Vassilopoulos, N. Walsh, P. Chimenti, P.-J. Chang, P. Novella, P. Pfahler, R. Carr, R. Milincic, R. Roncin, R. Santorelli, R. Sharankova, R. Svoboda, S. Lucht, S.M. Fernandes, S. Perasso, S. Roth, S. Schonert, S. Schoppmann, S. Shimojima, S. Sukhotin, S. Wagner, T. Hara, T.J.C. Bezerra, T. Kawasaki, T. Lachenmaier, T. Lasserre, T. Matsubara, T. Miletic, T. Sumiyoshi, V. Fischer, V. Sibille, V. Sinev, V. Zimmer, Y. Abe, Y. Kamyshkov, Y. Nagasaka, Y. Nikitenko, Y. Sakamoto, Y. Sun, Z. Djurcic","submitted_at":"2014-07-25T14:22:12Z","abstract_excerpt":"The Double Chooz experiment measures the neutrino mixing angle $\\theta_{13}$ by detecting reactor $\\bar{\\nu}_e$ via inverse beta decay. The positron-neutron space and time coincidence allows for a sizable background rejection, nonetheless liquid scintillator detectors would profit from a positron/electron discrimination, if feasible in large detector, to suppress the remaining background. Standard particle identification, based on particle dependent time profile of photon emission in liquid scintillator, can not be used given the identical mass of the two particles. However, the positron annih"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1407.6913","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"}