{
 "id": "LIB2-230",
 "entry_version": 8,
 "class": "COMPARATOR",
 "title": "SL-28: Historical PDG |Vcb| comparator",
 "statement": "The historical comparator for |Vcb| was 0.0408 ± 0.0014 and is retained only as the earlier value in the printed comparator transition.",
 "scope": {
  "carrier": null,
  "domain": "Historical PDG 2024 global-fit |Vcb| comparator, superseded in the current comparison by SL-13",
  "group": null,
  "hypotheses": [],
  "physical_target": "|Vcb|, historical comparator",
  "quantifier": null,
  "real_form": null
 },
 "source_labels_as_printed": {
  "math_status": "NOT_PRINTED",
  "attachment": "NOT_PRINTED",
  "scorecard_tier_word": null,
  "pdf_page": 48
 },
 "house_tier": null,
 "review_state": "PUBLISHED",
 "scientific_status": "COMPARATOR",
 "evidence_status": [
  {
   "kind": "external",
   "availability": "shipped"
  }
 ],
 "primary_source": {
  "component": "Paper 3",
  "section": "§2.1, Comparator refresh: historical Vcb value",
  "pdf_page": 50,
  "quote": "The named CKM comparators move: |Vcb | 0.0408 ± 0.0014 → 0.0407 ± 0.0013"
 },
 "caution": null,
 "candidate_ids": [
  "C2-206"
 ],
 "basis": {
  "pdf_sha256_prefix": "b64ddcd9e16a6dcd",
  "release": "Rev33.1_S369"
 },
 "relationships": [],
 "url": "/library-v2/LIB2-230/",
 "content_sha256": "74fcbe99b1bd8e6e9049cff50ab30a77baf3934fb95d67065c55752c9abb8e8b",
 "build_stamp": "BUILD_STAMP S371a · 2026-09-26T22:53Z · master 01d1a5873ede42f5 · cut 9dcc6ce9a8ee3e02"
}