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The mesons are treated as mixtures of the heavy $|H\\rangle =([su][\\bar s \\bar u]+[sd][\\bar s \\bar d])/\\sqrt 2$ and light $|L\\rangle =[ud][\\bar u \\bar d]$ scalar diquark-antidiquark components. We extract from corresponding sum rules the mixing angles $\\varphi_H$ and $\\varphi_L$ of these states and evaluate the masses and couplings of the particles $ f_0(500) $ and $"},"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":"1711.11553","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2017-11-30T18:18:38Z","cross_cats_sorted":["hep-ex","hep-lat"],"title_canon_sha256":"bfe54372c926425800636d6292a217522c997cd53e74392063f7c71d4e54cb3e","abstract_canon_sha256":"d03b35936197d3427797ff31335053a443584c5dec622b4a4ad05aa658004ac0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:30.082480Z","signature_b64":"3OlSiTTrwa5wY580X6fdGiUM1B/ay2xmddEcZF1ZS1+CoXkXcHxMeTmOFe5tnNh6gU1HO8CF6vXOxO9KQZUmDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"791084e861003b60871ef74f4b92552ce0fd34430b03d09c0bff98bdca306b34","last_reissued_at":"2026-05-18T00:16:30.082033Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:30.082033Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The structure, mixing angle, mass and couplings of the light scalar $f_0(500)$ and $f_0(980)$ mesons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-lat"],"primary_cat":"hep-ph","authors_text":"H. 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