{"paper":{"title":"Measurement of the muon beam direction and muon flux for the T2K neutrino experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","physics.acc-ph"],"primary_cat":"physics.ins-det","authors_text":"A. Ariga, A. Ereditato, A.K. Ichikawa, A. Minamino, A. Murakami, C. Bronner, C. Pistillo, F. Bay, F. Juget, H. Kubo, K. Matsuoka, K. Nakayoshi, K. Sakashita, K. Suzuki, K. Yamamoto, M. Friend, M. Hartz, M. Yokoyama, S. Aoki, S. Tada, S.Y. Suzuki, T. Ariga, T. Hiraki, T. Ishida, T. Ishii, T. Kikawa, T. Kobayashi, T. Maruyama, T. Nakadaira, T. Nakaya, T. Sekiguchi, Y. Oyama, Y. Yamada","submitted_at":"2014-11-30T07:58:50Z","abstract_excerpt":"The Tokai-to-Kamioka (T2K) neutrino experiment measures neutrino oscillations by using an almost pure muon neutrino beam produced at the J-PARC accelerator facility. The T2K muon monitor was installed to measure the direction and stability of the muon beam which is produced together with the muon neutrino beam. The systematic error in the muon beam direction measurement was estimated, using data and MC simulation, to be 0.28 mrad. During beam operation, the proton beam has been controlled using measurements from the muon monitor and the direction of the neutrino beam has been tuned to within 0"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.0194","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"}