{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:Q7NULDCD434AKNTMKNIBE6ZFNA","short_pith_number":"pith:Q7NULDCD","schema_version":"1.0","canonical_sha256":"87db458c43e6f805366c5350127b256826953d21b0f36ff3ea6abf2dd390928b","source":{"kind":"arxiv","id":"1205.5292","version":1},"attestation_state":"computed","paper":{"title":"A feasibility study of the measurement of Higgs pair creation at a Photon Linear Collider","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Daisuke Harada, Katsumasa Ikematsu, Keisuke Fujii, Koji Tsumura, Nozomi Maeda, Shin-ichi Kawada, Shinya Kanemura, Tohru Takahashi, Yoshimasa Kurihara","submitted_at":"2012-05-17T03:51:24Z","abstract_excerpt":"We studied the feasibility of the measurement of Higgs pair creation at a Photon Linear Collider (PLC). From the sensitivity to the anomalous self-coupling of the Higgs boson, the optimum $\\gamma \\gamma$ collision energy was found to be around 270 GeV for a Higgs mass of 120 GeV/$c^2$. We found that large backgrounds such as $\\gamma \\gamma \\rightarrow W^+W^-, ZZ,$ and $b\\bar{b}b\\bar{b}$, can be suppressed if correct assignment of tracks to parent partons is achieved and Higgs pair events can be observed with a statistical significance of $\\sim 5 \\sigma$ by operating the PLC for 5 years."},"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":"1205.5292","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2012-05-17T03:51:24Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"05e0bf60254b4360d5719da44b83465bdcdeb512e93e6ab04dad17d4eba3577f","abstract_canon_sha256":"ec03c61cf465079a8c97de7f5b0a9d66b63e5d6c6ec91a3570f5e2c77dc5bebd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:21:09.849991Z","signature_b64":"gdGldqGkaavkdO8Oh01gacWdDM/xHcFi/gbGAkp9OtboUXM18nH6dCdfqc8qz5RGqckmGlPAwTrPnpp9haWxAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87db458c43e6f805366c5350127b256826953d21b0f36ff3ea6abf2dd390928b","last_reissued_at":"2026-05-18T02:21:09.849498Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:21:09.849498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A feasibility study of the measurement of Higgs pair creation at a Photon Linear Collider","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Daisuke Harada, Katsumasa Ikematsu, Keisuke Fujii, Koji Tsumura, Nozomi Maeda, Shin-ichi Kawada, Shinya Kanemura, Tohru Takahashi, Yoshimasa Kurihara","submitted_at":"2012-05-17T03:51:24Z","abstract_excerpt":"We studied the feasibility of the measurement of Higgs pair creation at a Photon Linear Collider (PLC). From the sensitivity to the anomalous self-coupling of the Higgs boson, the optimum $\\gamma \\gamma$ collision energy was found to be around 270 GeV for a Higgs mass of 120 GeV/$c^2$. We found that large backgrounds such as $\\gamma \\gamma \\rightarrow W^+W^-, ZZ,$ and $b\\bar{b}b\\bar{b}$, can be suppressed if correct assignment of tracks to parent partons is achieved and Higgs pair events can be observed with a statistical significance of $\\sim 5 \\sigma$ by operating the PLC for 5 years."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.5292","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":"1205.5292","created_at":"2026-05-18T02:21:09.849571+00:00"},{"alias_kind":"arxiv_version","alias_value":"1205.5292v1","created_at":"2026-05-18T02:21:09.849571+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.5292","created_at":"2026-05-18T02:21:09.849571+00:00"},{"alias_kind":"pith_short_12","alias_value":"Q7NULDCD434A","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_16","alias_value":"Q7NULDCD434AKNTM","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_8","alias_value":"Q7NULDCD","created_at":"2026-05-18T12:27:18.751474+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/Q7NULDCD434AKNTMKNIBE6ZFNA","json":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA.json","graph_json":"https://pith.science/api/pith-number/Q7NULDCD434AKNTMKNIBE6ZFNA/graph.json","events_json":"https://pith.science/api/pith-number/Q7NULDCD434AKNTMKNIBE6ZFNA/events.json","paper":"https://pith.science/paper/Q7NULDCD"},"agent_actions":{"view_html":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA","download_json":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA.json","view_paper":"https://pith.science/paper/Q7NULDCD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1205.5292&json=true","fetch_graph":"https://pith.science/api/pith-number/Q7NULDCD434AKNTMKNIBE6ZFNA/graph.json","fetch_events":"https://pith.science/api/pith-number/Q7NULDCD434AKNTMKNIBE6ZFNA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA/action/storage_attestation","attest_author":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA/action/author_attestation","sign_citation":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA/action/citation_signature","submit_replication":"https://pith.science/pith/Q7NULDCD434AKNTMKNIBE6ZFNA/action/replication_record"}},"created_at":"2026-05-18T02:21:09.849571+00:00","updated_at":"2026-05-18T02:21:09.849571+00:00"}