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A novel, low-energy optical rotation experiment is being proposed with the aim of observing NSD PNC interactions in HgH. Based on the relativistic coupled cluster method we present a complete calculation of the circular polarization parameter $P = 2\\,\\textrm{Im}(E1_{PNC})/M1 \\approx 3 \\times 10^{-6}\\; \\kappa$ for the $^2\\Sigma_{1/2} \\to ^2\\Pi_{1/2}$ optical transition of HgH, where $\\kappa$ is a dimensionless constant determined b"},"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":"1804.05475","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2018-04-16T01:57:55Z","cross_cats_sorted":["nucl-th"],"title_canon_sha256":"b95165ec7d845e80a650a0e0f855c71fb8eef633a22dbcf9fe79f3afcafff8a5","abstract_canon_sha256":"f027737e50b59e1534a556076eff118b4fe041b974b8daa494c4aa041326c880"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:34.694844Z","signature_b64":"ikTRohvEuoK3uffZQtEP+VH1NoqOMimiNyR/iq/SJ7O9sgKuYO/T8Xy4zheATkWNoeI6EFTcok18wzIwwWZOCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f44d8889103f44381a11e9a59a4a2375875f6d1e5147fab8c01eaaa25adc041","last_reissued_at":"2026-05-18T00:07:34.694249Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:34.694249Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Enhanced nuclear spin dependent parity violation effects using the 199HgH molecule","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"physics.atom-ph","authors_text":"A. 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