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These new states are near the $D^*D^*$ and $D^*D^*_s$ thresholds, % Therefore, if the previous XYZ are molecules, then, there should be doubly charmed mesons with $J^P=1^+$ around the $D^*D^*$ threshold.\n  %For this reason, it is important to evaluate observables related to them. Because of the spin$=1$, they do not decay into $DD$. In this article we compute d"},"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":"1308.6351","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2013-08-29T02:59:14Z","cross_cats_sorted":[],"title_canon_sha256":"09aa8fd7ff6c21f4613259d9ab3bf036cbbe03c85d02ce913ee757ef381c6868","abstract_canon_sha256":"5e3492de6bbbf9db4c61da2dc6c7f97c2a0c717cc8857e9b870e125c7a98194d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:07:44.160797Z","signature_b64":"Kq3ZvEelkRZvUm0mOjsLruAwBKFUc+GpcgtAbNTnHu2o+r4M7mgk3sCxhAaMFc8/i8D4eAywdmMW6mLuhosgBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85f9c84567b32fbd04564d612f930018a42a03af4c71fc17af3aacc530a70303","last_reissued_at":"2026-05-18T03:07:44.160352Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:07:44.160352Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Decays of doubly charmed meson molecules","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"A. Hosaka, H. Nagahiro, R. Molina","submitted_at":"2013-08-29T02:59:14Z","abstract_excerpt":"Several observed states close to the $D\\bar{D}^*$ and $D^*_{(s)}\\bar{D}^*_{(s)}$ thresholds, as the X(3872) and some XYZ particles can be described in terms of a two-meson molecule. Furthermore, doubly charmed states are also predicted. These new states are near the $D^*D^*$ and $D^*D^*_s$ thresholds, % Therefore, if the previous XYZ are molecules, then, there should be doubly charmed mesons with $J^P=1^+$ around the $D^*D^*$ threshold.\n  %For this reason, it is important to evaluate observables related to them. Because of the spin$=1$, they do not decay into $DD$. 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