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Zhang","submitted_at":"2017-05-17T01:22:17Z","abstract_excerpt":"We report a study of the decay $D^0 \\to K^0_S K^0_S$ using 921~fb$^{-1}$ of data collected at or near the $\\Upsilon(4S)$ and $\\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric energy $e^+e^-$ collider. The measured time-integrated $CP$ asymmetry is $ A_{CP}(D^0 \\to K^0_S K^0_S) = (-0.02 \\pm 1.53 \\pm 0.02 \\pm 0.17) \\%$, and the branching fraction is $\\mathcal{B} (D^{0}\\rightarrow K_{S}^{0}K_{S}^{0})$ = (1.321 $\\pm$ 0.023 $\\pm$ 0.036 $\\pm$ 0.044) $\\times$ 10$^{-4}$, where the first uncertainty is statistical, the second is systematic, and the third is due to the normalizati"},"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":"1705.05966","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2017-05-17T01:22:17Z","cross_cats_sorted":[],"title_canon_sha256":"07055e084c05bff6dd53c5140a667ece9ed8052e9440c2f6b78f1a58155efd2c","abstract_canon_sha256":"ca54cf923520b9282e647ce9436762d0d49338439e96873bce1874a24038116f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:31:41.065847Z","signature_b64":"h/xVVtpnUJWucbrGVxfRrh33yq+lL3GTzsWP/mrXtuliYYjBhpfCeWjq95PocRWt+k3m2IvV1nZorEabbCcgDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"92abf1744e29967a9d1fd832e2e74f70f1c5f763cf04b26251ecedb21c719c84","last_reissued_at":"2026-05-18T00:31:41.065406Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:31:41.065406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Search for $CP$ Violation and Measurement of the Branching Fraction in the Decay $D^{0} \\to K^0_S K^0_S$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. 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