{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:W53ZPCUZKHV7N2UIINAQM6SLBK","short_pith_number":"pith:W53ZPCUZ","schema_version":"1.0","canonical_sha256":"b777978a9951ebf6ea884341067a4b0ab51ce49d73af86ab59461c64cf0a3177","source":{"kind":"arxiv","id":"1411.3963","version":2},"attestation_state":"computed","paper":{"title":"Search for heavy neutrinos in $K^+\\to\\mu^+\\nu_H$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Konaka, A.N. Khotjantsev, A.O. Izmaylov, A.T. Shaikhiev, A.V. Artamonov, B. Bassalleck, B. Bhuyan, B. Lewis, B. Viren, D.A. Bryman, D.E. Jaffe, D.I. Patalakha, D.V. Vavilov, E.W. Blackmore, G. Redlinger, Hanyu Wei, I.-A. Christidi, I-H. Chiang, J.A. Macdonald, J. Hu, J. Ives, J. Mildenberger, J.S. Frank, K.K. Li, K. Mizouchi, K. Omata, L.G. Landsberg, L.S. Littenberg, M. Kobayashi, M. Miyajima, M.M. Khabibullin, M. Nomachi, M.V. Diwan, N. Muramatsu, N.V. Yershov, O.V. Mineev, P. Kitching, P.S. Cooper, R.C. Strand, R. Poutissou, R. Tschirhart, S. Chen, S.H. Kettell, S. Kabe, S. Sugimoto, T. Fujiwara, T.K. Komatsubara, T. Nakano, T. Nomura, T. Numao, T. Sato, T. Sekiguchi, T. Shinkawa, T. Tsunemi, T. Yoshioka, V.F. Obraztsov, Y. Tamagawa, Yu.G. Kudenko, Y. Yoshimura, Zhe Wang","submitted_at":"2014-11-14T16:33:20Z","abstract_excerpt":"Evidence of a heavy neutrino, $\\nu_H$, in the $K^+\\to\\mu^+\\nu_H$ decays was sought using the E949 experimental data with an exposure of $1.70\\times 10^{12}$ stopped kaons. With the major background from the radiative $K^+\\to\\mu^+\\nu_\\mu\\gamma$ decay understood and suppressed, upper limits (90% C.L.) on the neutrino mixing matrix element between muon and heavy neutrino, $|U_{\\mu H}|^2$, were set at the level of $10^{-7}$ to $10^{-9}$ for the heavy neutrino mass region 175 to 300 MeV/$c^2$."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1411.3963","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2014-11-14T16:33:20Z","cross_cats_sorted":[],"title_canon_sha256":"c686d5347c9358358f2940d8e1e398aa6e89cb9b7e1a1f7bc2fbfb16edbf2374","abstract_canon_sha256":"01370af186ef22014a9988d6aeae8e67283d7c72170d57f205404ee9e65120ac"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:25:55.785724Z","signature_b64":"I18FDdBE6JLNRthgzIrwVf/3WKA4gC4nsY8kubC8pPcG8xpkcf7uX0x/driHVqIL9UFtaq2xJb2PCU+r/e2ACg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b777978a9951ebf6ea884341067a4b0ab51ce49d73af86ab59461c64cf0a3177","last_reissued_at":"2026-05-18T02:25:55.785287Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:25:55.785287Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Search for heavy neutrinos in $K^+\\to\\mu^+\\nu_H$ decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Konaka, A.N. Khotjantsev, A.O. Izmaylov, A.T. Shaikhiev, A.V. Artamonov, B. Bassalleck, B. Bhuyan, B. Lewis, B. Viren, D.A. Bryman, D.E. Jaffe, D.I. Patalakha, D.V. Vavilov, E.W. Blackmore, G. Redlinger, Hanyu Wei, I.-A. Christidi, I-H. Chiang, J.A. Macdonald, J. Hu, J. Ives, J. Mildenberger, J.S. Frank, K.K. Li, K. Mizouchi, K. Omata, L.G. Landsberg, L.S. Littenberg, M. Kobayashi, M. Miyajima, M.M. Khabibullin, M. Nomachi, M.V. Diwan, N. Muramatsu, N.V. Yershov, O.V. Mineev, P. Kitching, P.S. Cooper, R.C. Strand, R. Poutissou, R. Tschirhart, S. Chen, S.H. Kettell, S. Kabe, S. Sugimoto, T. Fujiwara, T.K. Komatsubara, T. Nakano, T. Nomura, T. Numao, T. Sato, T. Sekiguchi, T. Shinkawa, T. Tsunemi, T. Yoshioka, V.F. Obraztsov, Y. Tamagawa, Yu.G. Kudenko, Y. Yoshimura, Zhe Wang","submitted_at":"2014-11-14T16:33:20Z","abstract_excerpt":"Evidence of a heavy neutrino, $\\nu_H$, in the $K^+\\to\\mu^+\\nu_H$ decays was sought using the E949 experimental data with an exposure of $1.70\\times 10^{12}$ stopped kaons. With the major background from the radiative $K^+\\to\\mu^+\\nu_\\mu\\gamma$ decay understood and suppressed, upper limits (90% C.L.) on the neutrino mixing matrix element between muon and heavy neutrino, $|U_{\\mu H}|^2$, were set at the level of $10^{-7}$ to $10^{-9}$ for the heavy neutrino mass region 175 to 300 MeV/$c^2$."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1411.3963","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1411.3963","created_at":"2026-05-18T02:25:55.785364+00:00"},{"alias_kind":"arxiv_version","alias_value":"1411.3963v2","created_at":"2026-05-18T02:25:55.785364+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1411.3963","created_at":"2026-05-18T02:25:55.785364+00:00"},{"alias_kind":"pith_short_12","alias_value":"W53ZPCUZKHV7","created_at":"2026-05-18T12:28:54.890064+00:00"},{"alias_kind":"pith_short_16","alias_value":"W53ZPCUZKHV7N2UI","created_at":"2026-05-18T12:28:54.890064+00:00"},{"alias_kind":"pith_short_8","alias_value":"W53ZPCUZ","created_at":"2026-05-18T12:28:54.890064+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK","json":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK.json","graph_json":"https://pith.science/api/pith-number/W53ZPCUZKHV7N2UIINAQM6SLBK/graph.json","events_json":"https://pith.science/api/pith-number/W53ZPCUZKHV7N2UIINAQM6SLBK/events.json","paper":"https://pith.science/paper/W53ZPCUZ"},"agent_actions":{"view_html":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK","download_json":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK.json","view_paper":"https://pith.science/paper/W53ZPCUZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1411.3963&json=true","fetch_graph":"https://pith.science/api/pith-number/W53ZPCUZKHV7N2UIINAQM6SLBK/graph.json","fetch_events":"https://pith.science/api/pith-number/W53ZPCUZKHV7N2UIINAQM6SLBK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK/action/storage_attestation","attest_author":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK/action/author_attestation","sign_citation":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK/action/citation_signature","submit_replication":"https://pith.science/pith/W53ZPCUZKHV7N2UIINAQM6SLBK/action/replication_record"}},"created_at":"2026-05-18T02:25:55.785364+00:00","updated_at":"2026-05-18T02:25:55.785364+00:00"}