{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:WXOPU2TGMC4XMMONP6VP3T5FIH","short_pith_number":"pith:WXOPU2TG","schema_version":"1.0","canonical_sha256":"b5dcfa6a6660b97631cd7faafdcfa541eaeb199ff540de3d421e96141a3abbc9","source":{"kind":"arxiv","id":"2002.09170","version":3},"attestation_state":"computed","paper":{"title":"Improved search for two body muon decay ${\\mu}^+{\\rightarrow}e^+X_H$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Aguilar-Arevalo, A. Hussein, A. Sher, C. Malbrunot, D.A. Bryman, D.I. Britton, D. Protopopescu, D. Vavilov, D. vom Bruch, J. Comfort, L. Doria, L. Kurchaninov, L.S. Littenberg, M. Aoki, M. Blecher, P. Gumplinger, R.E. Mischke, S. Chen, S. Cuen-Rochin, S. Ito, S. Kettell, T. Numao, T. Sullivan, Y. Igarashi","submitted_at":"2020-02-21T07:53:59Z","abstract_excerpt":"Charged lepton flavor violating muon decay ${\\mu}^+{\\rightarrow}e^+X_H$, where $X_H$ is a massive neutral boson, was sought by searching for extra peaks in the muon decay ${\\mu}^+{\\rightarrow}e^+{\\nu}\\bar{\\nu}$ energy spectrum in the $m_{X_H}$ mass region $47.8-95.1$ MeV/$c^2$. No signal was found and 90% confidence level upper limits were set on the branching ratio ${\\Gamma}({\\mu}^+{\\rightarrow}e^+X_H)/{\\Gamma}({\\mu}^+{\\rightarrow}e^+{\\nu}\\bar{\\nu})$ at the level of $10^{-5}$ for this region."},"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":"2002.09170","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2020-02-21T07:53:59Z","cross_cats_sorted":["nucl-ex"],"title_canon_sha256":"af7f14201e5183bf7a28f392cd099f2c27169bacddcb163132f5e17eeb8dfba7","abstract_canon_sha256":"5278ea81912697275f82ad6ebdc933012cc6845f05662911e1706fb55d353f1a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:53:46.199222Z","signature_b64":"fAkEIRRkVr8xbWVljPWt9B54sIQOElvnEPa11Wtam7BZX+rERaY9WsGx6xUEJO+nJ6TeUeR7Hk+mj/s6wd36Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b5dcfa6a6660b97631cd7faafdcfa541eaeb199ff540de3d421e96141a3abbc9","last_reissued_at":"2026-07-05T00:53:46.198732Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:53:46.198732Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Improved search for two body muon decay ${\\mu}^+{\\rightarrow}e^+X_H$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Aguilar-Arevalo, A. Hussein, A. Sher, C. Malbrunot, D.A. Bryman, D.I. Britton, D. Protopopescu, D. Vavilov, D. vom Bruch, J. Comfort, L. Doria, L. Kurchaninov, L.S. Littenberg, M. Aoki, M. Blecher, P. Gumplinger, R.E. Mischke, S. Chen, S. Cuen-Rochin, S. Ito, S. Kettell, T. Numao, T. Sullivan, Y. Igarashi","submitted_at":"2020-02-21T07:53:59Z","abstract_excerpt":"Charged lepton flavor violating muon decay ${\\mu}^+{\\rightarrow}e^+X_H$, where $X_H$ is a massive neutral boson, was sought by searching for extra peaks in the muon decay ${\\mu}^+{\\rightarrow}e^+{\\nu}\\bar{\\nu}$ energy spectrum in the $m_{X_H}$ mass region $47.8-95.1$ MeV/$c^2$. No signal was found and 90% confidence level upper limits were set on the branching ratio ${\\Gamma}({\\mu}^+{\\rightarrow}e^+X_H)/{\\Gamma}({\\mu}^+{\\rightarrow}e^+{\\nu}\\bar{\\nu})$ at the level of $10^{-5}$ for this region."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.09170","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2002.09170/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2002.09170","created_at":"2026-07-05T00:53:46.198794+00:00"},{"alias_kind":"arxiv_version","alias_value":"2002.09170v3","created_at":"2026-07-05T00:53:46.198794+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.09170","created_at":"2026-07-05T00:53:46.198794+00:00"},{"alias_kind":"pith_short_12","alias_value":"WXOPU2TGMC4X","created_at":"2026-07-05T00:53:46.198794+00:00"},{"alias_kind":"pith_short_16","alias_value":"WXOPU2TGMC4XMMON","created_at":"2026-07-05T00:53:46.198794+00:00"},{"alias_kind":"pith_short_8","alias_value":"WXOPU2TG","created_at":"2026-07-05T00:53:46.198794+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.19299","citing_title":"Probing Long-Lived Particle Production in Muon Decays at the SNS with a Highly Capable Hydrocarbon Detector","ref_index":124,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH","json":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH.json","graph_json":"https://pith.science/api/pith-number/WXOPU2TGMC4XMMONP6VP3T5FIH/graph.json","events_json":"https://pith.science/api/pith-number/WXOPU2TGMC4XMMONP6VP3T5FIH/events.json","paper":"https://pith.science/paper/WXOPU2TG"},"agent_actions":{"view_html":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH","download_json":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH.json","view_paper":"https://pith.science/paper/WXOPU2TG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2002.09170&json=true","fetch_graph":"https://pith.science/api/pith-number/WXOPU2TGMC4XMMONP6VP3T5FIH/graph.json","fetch_events":"https://pith.science/api/pith-number/WXOPU2TGMC4XMMONP6VP3T5FIH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH/action/storage_attestation","attest_author":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH/action/author_attestation","sign_citation":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH/action/citation_signature","submit_replication":"https://pith.science/pith/WXOPU2TGMC4XMMONP6VP3T5FIH/action/replication_record"}},"created_at":"2026-07-05T00:53:46.198794+00:00","updated_at":"2026-07-05T00:53:46.198794+00:00"}