{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HFXB2M3A5SBL3TY4WHFD5JGXQ6","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"73556ef8daf02270b8fa5cae2ad18362bffa3e0fe8a37fb7bd92fee7db27b8ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-09-25T09:45:07Z","title_canon_sha256":"fc4180f172dd482e2027d51fbe82ccef963811a1e6ba227c4ce7854ba4ed0f7f"},"schema_version":"1.0","source":{"id":"1709.08402","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.08402","created_at":"2026-05-18T00:34:25Z"},{"alias_kind":"arxiv_version","alias_value":"1709.08402v1","created_at":"2026-05-18T00:34:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.08402","created_at":"2026-05-18T00:34:25Z"},{"alias_kind":"pith_short_12","alias_value":"HFXB2M3A5SBL","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HFXB2M3A5SBL3TY4","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HFXB2M3A","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:4323fbed0722b740457641c9c08cf2099bc7b0dff910f389cb0cfb6e74feb9a5","target":"graph","created_at":"2026-05-18T00:34:25Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We study the impact of recent measurements of charm cross section H1-ZEUS combined data on simultaneous determination of parton distribution functions (PDFs) and the strong coupling, $\\alpha_s(M^2_Z)$, in two different schemes. We perform several fits based on Thorne-Roberts (RT) and Thorne-Roberts optimal (RTOPT) schemes at next-to-leading order (NLO). We show that adding charm cross section H1-ZEUS combined data reduces the uncertainty of the gluon distribution and improves the fit quality up to $\\sim 0.4$~\\% and $\\sim 0.9$~\\%~, without and with the charm contribution, from the RT scheme to ","authors_text":"A. N. Khorramian, A. Vafaee","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-09-25T09:45:07Z","title":"Impact of Charm H1-ZEUS Combined data and Determination of the Strong Coupling in Two Different Schemes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.08402","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e3d3bf920e82e088b2fd765c15484bacbd6b29123f28d7fd19231a30fb9f5795","target":"record","created_at":"2026-05-18T00:34:25Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"73556ef8daf02270b8fa5cae2ad18362bffa3e0fe8a37fb7bd92fee7db27b8ed","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-09-25T09:45:07Z","title_canon_sha256":"fc4180f172dd482e2027d51fbe82ccef963811a1e6ba227c4ce7854ba4ed0f7f"},"schema_version":"1.0","source":{"id":"1709.08402","kind":"arxiv","version":1}},"canonical_sha256":"396e1d3360ec82bdcf1cb1ca3ea4d787b2eff5658d56f2433ebcb16cb940af35","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"396e1d3360ec82bdcf1cb1ca3ea4d787b2eff5658d56f2433ebcb16cb940af35","first_computed_at":"2026-05-18T00:34:25.711895Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:25.711895Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g8rwMEQqwTD/XfSedQ9V/txgm1u/SRGAUKa2K+BlE9hiScC2aaorRvXXV4EIqft4OspfXjq9EdxtmEjMNQ7PAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:25.712544Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.08402","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3d3bf920e82e088b2fd765c15484bacbd6b29123f28d7fd19231a30fb9f5795","sha256:4323fbed0722b740457641c9c08cf2099bc7b0dff910f389cb0cfb6e74feb9a5"],"state_sha256":"a2454c064bb3bb799e3fc774b41ede7abd525328847d010248e74051ef5c55ad"}