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The combined results from Brookhaven and Fermilab show a difference with the SM prediction $\\delta a_\\mu = (251 \\pm 59) \\times 10^{-11}$ at a significance of $4.2\\sigma$, strongly indicating the presence of new physics. Motivated by this new result we reexamine the contributions to the muon anomalous magnetic moment from both: (i)~the ubiquitous $U(1)$ gauge bosons of D-brane string theory cons"},"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":"2104.06854","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-04-14T13:48:03Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"db16008db800827d4705ea915cb9e12e870741679fcdcee45c02e736e11c9c48","abstract_canon_sha256":"b1aedbbb89919bf35a25c637b7926546d921606accd4624b3774a37c82202db8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:31:26.286861Z","signature_b64":"qyhas+lEtLe0z7W+8eIep8Ah9d7JRhrMjHgF4GFrrYzkV9QQbnWbfLlize6RhGZNYRFdasjs9zYNsoME0bJPBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"51d11c0607246b3fee16be07ec1832261cf61d4e75da80835db7cb84a0b71849","last_reissued_at":"2026-07-05T03:31:26.286459Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:31:26.286459Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Muon ${g-2}$ discrepancy within D-brane string compactifications","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"hep-ph","authors_text":"Dieter Lust, Ignatios Antoniadis, Luis A. 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