{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:44AOVXV2RGNGQNZKGEG62MHRA7","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":"c758efbf01a3a67899002445cebda0dae1c1413a4028c5b4c54ac6a19d9f78f9","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-22T13:04:02Z","title_canon_sha256":"33bfb3d352ab25a9ec2736c59e02e436271d97f8cbd60d762b40d6cc2d800a08"},"schema_version":"1.0","source":{"id":"1109.4797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.4797","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"arxiv_version","alias_value":"1109.4797v1","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4797","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"pith_short_12","alias_value":"44AOVXV2RGNG","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"44AOVXV2RGNGQNZK","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"44AOVXV2","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:34beb3f0b52e4f83a38afaff262a1573fecbff32d9e1a5f42e2d384acb06894e","target":"graph","created_at":"2026-05-18T03:48:45Z","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 prove that it is impossible to construct a grand unified model, based on a simple gauge group, in four dimensions that leads to the exact MSSM, nor to a singlet extension, and possesses an unbroken R symmetry. This implies that no MSSM model with either a Z_{M>=3}^R or U(1)_R symmetry can be completed by a four-dimensional GUT in the ultraviolet. However, our no-go theorem does not apply to GUT models with extra dimensions. We also show that it is impossible to construct a 4D GUT that leads to the MSSM plus an additional anomaly-free symmetry that forbids the mu term.","authors_text":"Maximilian Fallbacher, Michael Ratz, Patrick K.S. Vaudrevange","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-22T13:04:02Z","title":"No-go theorems for R symmetries in four-dimensional GUTs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4797","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":"sha256:5c0dc69b03d8531fbe5c9ad6d2f177c6bb08690f6bc7a79193ad6fc1df7ce388","target":"record","created_at":"2026-05-18T03:48:45Z","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":"c758efbf01a3a67899002445cebda0dae1c1413a4028c5b4c54ac6a19d9f78f9","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2011-09-22T13:04:02Z","title_canon_sha256":"33bfb3d352ab25a9ec2736c59e02e436271d97f8cbd60d762b40d6cc2d800a08"},"schema_version":"1.0","source":{"id":"1109.4797","kind":"arxiv","version":1}},"canonical_sha256":"e700eadeba899a68372a310ded30f107d817870cadccb7e41d2f83d39df1b30a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e700eadeba899a68372a310ded30f107d817870cadccb7e41d2f83d39df1b30a","first_computed_at":"2026-05-18T03:48:45.115295Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:45.115295Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rKZdTrl2OixrHAwe/8GwuUj8Ky+436Qu9sm+DYzicf0skraPztd8/DlEtJYF+VOfWK/ztJgAhLD2UIczVr2sAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:45.115785Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.4797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c0dc69b03d8531fbe5c9ad6d2f177c6bb08690f6bc7a79193ad6fc1df7ce388","sha256:34beb3f0b52e4f83a38afaff262a1573fecbff32d9e1a5f42e2d384acb06894e"],"state_sha256":"3dae27f909ab8596e3a6538b6d23f8cf8a6b9e066aa3d998852756bc37b49f06"}