{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:ZA5U6YDGZQSIBWFW5JPRR6VHWM","short_pith_number":"pith:ZA5U6YDG","schema_version":"1.0","canonical_sha256":"c83b4f6066cc2480d8b6ea5f18faa7b30e5f27269210a025f4866a55e8dfca68","source":{"kind":"arxiv","id":"1804.07148","version":1},"attestation_state":"computed","paper":{"title":"Feasibility study of the time reversal symmetry tests in decays of metastable positronium atoms with the J-PET detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Gajos, B. C. Hiesmayr, B. Jasi\\'nska, B. Zgardzi\\'nska, C. Curceanu, D. Kisielewska, E. Czerwi\\'nski, E. Kubicz, G. Korcyl, J. Raj, K. Dulski, K. Kacprzak, {\\L}. Kap{\\l}on, L. Raczy\\'nski, M. Gorgol, M. Mohammed, M. Pa{\\l}ka, M. Pawlik-Nied\\'zwiecka, M. Silarski, M. Skurzok, M. Zieli\\'nski, N. Gupta-Sharma, P. Kowalski, P. Moskal, R. Shopa, Shivani, S. Sharma, Sz. Nied\\'zwiecki, T. Kozik, W. Krzemie\\'n, W. Wi\\'slicki, Z. Rudy","submitted_at":"2018-04-19T13:24:30Z","abstract_excerpt":"This article reports on the feasibility of testing of the symmetry under reversal in time in a purely leptonic system constituted by positronium atoms using the J-PET detector. The present state of T symmetry tests is discussed with an emphasis on the scarcely explored sector of leptonic systems. Two possible strategies of searching for manifestations of T violation in non-vanishing angular correlations of final state observables in the decays of metastable triplet states of positronium available with J-PET are proposed and discussed. Results of a pilot measurement with J-PET and assessment of"},"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":"1804.07148","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-04-19T13:24:30Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"40ade4254d3a91397bfc04a9e6540773b60b65e6c50051910495165cd4ac6acd","abstract_canon_sha256":"bbcf4d52a4598d2dd4339d34f15022bb7ee3a59ed8ac97611459df043f46863d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:01.283839Z","signature_b64":"vsMdBpwz3XYYPQpJ5Jewd2oAjm2IwzjPoGvNwxH6lcrZWr4p9YIOMAgC5gPUVJMJsCvkXrjIx/xCuRErsiCKAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c83b4f6066cc2480d8b6ea5f18faa7b30e5f27269210a025f4866a55e8dfca68","last_reissued_at":"2026-05-18T00:18:01.283133Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:01.283133Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Feasibility study of the time reversal symmetry tests in decays of metastable positronium atoms with the J-PET detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Gajos, B. C. Hiesmayr, B. Jasi\\'nska, B. Zgardzi\\'nska, C. Curceanu, D. Kisielewska, E. Czerwi\\'nski, E. Kubicz, G. Korcyl, J. Raj, K. Dulski, K. Kacprzak, {\\L}. Kap{\\l}on, L. Raczy\\'nski, M. Gorgol, M. Mohammed, M. Pa{\\l}ka, M. Pawlik-Nied\\'zwiecka, M. Silarski, M. Skurzok, M. Zieli\\'nski, N. Gupta-Sharma, P. Kowalski, P. Moskal, R. Shopa, Shivani, S. Sharma, Sz. Nied\\'zwiecki, T. Kozik, W. Krzemie\\'n, W. Wi\\'slicki, Z. Rudy","submitted_at":"2018-04-19T13:24:30Z","abstract_excerpt":"This article reports on the feasibility of testing of the symmetry under reversal in time in a purely leptonic system constituted by positronium atoms using the J-PET detector. The present state of T symmetry tests is discussed with an emphasis on the scarcely explored sector of leptonic systems. Two possible strategies of searching for manifestations of T violation in non-vanishing angular correlations of final state observables in the decays of metastable triplet states of positronium available with J-PET are proposed and discussed. Results of a pilot measurement with J-PET and assessment of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07148","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1804.07148","created_at":"2026-05-18T00:18:01.283251+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.07148v1","created_at":"2026-05-18T00:18:01.283251+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07148","created_at":"2026-05-18T00:18:01.283251+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZA5U6YDGZQSI","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZA5U6YDGZQSIBWFW","created_at":"2026-05-18T12:33:04.347982+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZA5U6YDG","created_at":"2026-05-18T12:33:04.347982+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/ZA5U6YDGZQSIBWFW5JPRR6VHWM","json":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM.json","graph_json":"https://pith.science/api/pith-number/ZA5U6YDGZQSIBWFW5JPRR6VHWM/graph.json","events_json":"https://pith.science/api/pith-number/ZA5U6YDGZQSIBWFW5JPRR6VHWM/events.json","paper":"https://pith.science/paper/ZA5U6YDG"},"agent_actions":{"view_html":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM","download_json":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM.json","view_paper":"https://pith.science/paper/ZA5U6YDG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.07148&json=true","fetch_graph":"https://pith.science/api/pith-number/ZA5U6YDGZQSIBWFW5JPRR6VHWM/graph.json","fetch_events":"https://pith.science/api/pith-number/ZA5U6YDGZQSIBWFW5JPRR6VHWM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM/action/storage_attestation","attest_author":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM/action/author_attestation","sign_citation":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM/action/citation_signature","submit_replication":"https://pith.science/pith/ZA5U6YDGZQSIBWFW5JPRR6VHWM/action/replication_record"}},"created_at":"2026-05-18T00:18:01.283251+00:00","updated_at":"2026-05-18T00:18:01.283251+00:00"}