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Our calculation explains the discrepancy between the recent experimental 5s^2 ^1S_0 - 5s5p ^3P_0^o dc Stark shift measurement \\Delta \\alpha = 247.374(7) a.u. [Middelmann et. al, arXiv:1208.2848 (2012)] and the earlier theoretical result of 261(4) a.u. [Porsev and Derevianko, Phys. Rev. A 74, 020502R (2006)]. Our present value of 247.5 a.u. is in excellent agreement with the experimental result. We also evaluated"},"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":"1210.7272","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2012-10-26T23:47:50Z","cross_cats_sorted":["physics.optics","quant-ph"],"title_canon_sha256":"e8988b027a692f37de69f6389eb89b3217a3b47941c5e78fc2a05fa0b7dd1b6f","abstract_canon_sha256":"b9f25859c914f891085dcf8c85576a94bb889052ca8be406cb9460fcf23e8670"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:53:36.889682Z","signature_b64":"TMRAxZXKIiqfLBjomIXTj8WE+KDCZYShSKkfgrf/Kcvna1vPgV+m1Yc5gJD+910MSZZ6AngEWNEofnsw1a8XDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"681697d85bc1efcae3243d3efbec481ca816cebba82fdf13e0ba9f50bf27bae2","last_reissued_at":"2026-05-18T01:53:36.889147Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:53:36.889147Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Blackbody radiation shift in the Sr optical atomic clock","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics","quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"Charles W. Clark, M. G. Kozlov, M. S. Safronova, S. G. Porsev, U. I. Safronova","submitted_at":"2012-10-26T23:47:50Z","abstract_excerpt":"We evaluated the static and dynamic polarizabilities of the 5s^2 ^1S_0 and 5s5p ^3P_0^o states of Sr using the high-precision relativistic configuration interaction + all-order method. Our calculation explains the discrepancy between the recent experimental 5s^2 ^1S_0 - 5s5p ^3P_0^o dc Stark shift measurement \\Delta \\alpha = 247.374(7) a.u. [Middelmann et. al, arXiv:1208.2848 (2012)] and the earlier theoretical result of 261(4) a.u. [Porsev and Derevianko, Phys. Rev. A 74, 020502R (2006)]. Our present value of 247.5 a.u. is in excellent agreement with the experimental result. 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