1c — Consolidated source pool (step 1, LHC black-holes)

Merged overview of the 23 source nodes from the three 1b searchers — slice A (official safety case + micro-BH theory), slice B (independent empirical survival bounds), slice C (critics, dissent, risk-methodology, precedent). This is the entry point step 2 curates from (curated_target_N = 5). Grouped by line of evidence, best-first within each group. No duplicates found; collision-control held (audit at the bottom).

Framing: the “no risk” verdict is a conjunction — a produced black hole must (a) form at all, (b) decay, and (c) even if it did not decay, be excluded by independent survival data; plus a meta-layer on how trustworthy an a-priori theory-only bound can be. The groups follow that spine.

The pool, by line of evidence

1. Umbrella official verdicts — the “put-to-rest” documents

  1. S-7 - LSAG 2008 - Review of the Safety of LHC Collisions — the load-bearing 2008 synthesis; the document the main question is about.
  2. S-9 - Blaizot et al. 2003 - Study of Potentially Dangerous Events During Heavy-Ion Collisions at the LHC (CERN-2003-001) — 2003 predecessor; black-hole discussion superseded by S-7.
  3. S-6 - CERN FAQ - Will CERN generate a black hole — public-facing summary, derivative of S-7; not a primary analysis.

2. Does a black hole even form? — production theory + enabling premise

  1. S-11 - Dimopoulos and Landsberg 2001 - Black Holes at the LHC — canonical ~1/sec production-rate claim; one of two founding papers.
  2. S-12 - Giddings and Thomas 2002 - High-energy colliders as black hole factories — independent contemporaneous derivation; corroborates S-11.
  3. S-13 - Arkani-Hamed, Dimopoulos and Dvali 1998 - The hierarchy problem and new dimensions at a millimeter — the enabling premise (large extra dimensions → TeV gravity); unconfirmed, now excluded up to ~5-10 TeV. Hinge.
  4. S-15 - Meade and Randall 2008 - Black holes and quantum gravity at the LHC — physics-internal caveat: the semiclassical Hawking-BH picture may not apply at TeV masses (but whatever forms still decays promptly). The one in-establishment dissent on the production/decay theory.

3. Does it decay? — Hawking radiation (central unobserved hinge)

  1. S-14 - Hawking 1975 - Particle creation by black holes — the entire “it evaporates instantly” branch rests on this; theoretically robust, broad consensus, but never directly observed. The single biggest hinge.

4. If it does not decay: slow-BH survival bound (white dwarfs & neutron stars)

  1. S-1 - Astrophysical implications of hypothetical stable TeV-scale black holes — Giddings-Mangano 2008, the core empirical safety analysis; WD/NS accretion bounds close the cosmic-ray loophole for slow, trapped BHs. Load-bearing for the “stable BH” branch.
  2. S-10 - Spectropolarimetric survey of hydrogen-rich white dwarf stars — Kawka et al. 2007, the observational WD magnetic-field dataset several of S-1’s named white dwarfs rely on (one hop from S-1’s reference list).

5. Cosmic-ray survival premise — shared basis (⚠ ONE D-node; do not count reuses as independent)

  1. S-2 - How stable is our vacuum (Hut and Rees 1983) — seminal statement of the cosmic-ray-survival argument (applied to vacuum decay); the template every later reuse traces to.
  2. S-5 - Measurement of the cosmic-ray energy spectrum using the Pierre Auger Observatory — the actual UHECR flux/spectrum data the “cosmic rays already exceed LHC energies” premise rests on.

6. RHIC-era empirical safety precedents (black holes + strangelets)

  1. S-3 - Review of speculative disaster scenarios at RHIC — Busza-Jaffe-Sandweiss-Wilczek 2000, officially commissioned Brookhaven precedent to LSAG; detailed strangelet-stability framework; rests on cosmic-ray/Moon survival.
  2. S-4 - Will relativistic heavy-ion colliders destroy our planet (Dar, De Rujula, Heinz 1999) — independent concurrent cross-check, same premise.
  1. S-8 - Search for stable strange quark matter in lunar soil — Han et al. 2009; a dedicated experimental search (Moon as collector), constraining strangelet existence directly rather than via “the Moon still exists.”

8. Scientific critics & the one real exchange (dissent in its own words)

  1. S-16 - Potential catastrophic risk from metastable quantum black holes (Plaga 2008) — the one substantive scientific critique: a metastable BH could accrete before evaporating; claims G-M’s bounds have an unargued gap. Pairs with S-17.
  2. S-17 - Comments on claimed risk from metastable black holes (Giddings-Mangano reply to Plaga) — the direct rebuttal; by interested parties (Mangano = LSAG co-author). Both S-16 and S-17 are arXiv-only, never peer-reviewed.
  3. S-18 - Rössler’s Abraham-solution critique of LHC black-hole safety (2008) — the highest-visibility public dissent (drove the 2008 alarm and the lawsuits); denies Hawking evaporation via a non-standard GR reading; self-published, motivatedness HIGH. CERN’s rebuttal (Nicolai; Giulini-Nicolai) is folded into this node’s prose, not a separate node (see exclusions).

9. Legal/public test

  1. S-19 - Sancho v. U.S. Department of Energy - the Wagner-Sancho LHC lawsuit (D. Haw. 2008) — the only judicial test; dismissed on jurisdiction, never reached the physics.

10. Risk-methodology — how to bound a theory-error-dominated probability

  1. S-21 - Probing the Improbable - risk-argument flaw ceiling (Ord, Hillerbrand, Sandberg 2010) — most direct/formal; argues the verdict hinges on the reliability of the arguments, not the quoted physical probability. Uses LHC as its worked example.
  2. S-23 - Is a doomsday catastrophe likely - the observer-selection bound (Tegmark and Bostrom 2005) — Nature; the anthropic objection that undercuts the cosmic-ray-survival argument itself (group 5), and derives a selection-bias-free bound (~1/Gyr). More than risk-communication — it hits the empirical backbone.
  3. S-22 - A critical look at risk assessments for global catastrophes (Kent 2004) — earliest (RHIC-era); policy-consistency argument (implied risk tolerance vs radiation-safety norms).

11. Historical / methodological analogue

  1. S-20 - LA-602 (1946) - Ignition of the Atmosphere with Nuclear Bombs — the founding a-priori catastrophe-bound calc; correct, but rested on deliberately conservative assumptions and a thin (~1.6) margin — the analogue Ord/Kent price the failure-probability of.

Union of searchers’ exclusions

A. Cross-slice hand-offs (NOT drops — collision-control working)

Each searcher listed the other slices’ canonical primaries as “out of scope, owned by slice X.” Every such item IS in the pool under its owning slice (G-M astro → S-1; LSAG → S-7; Blaizot → S-9; CERN FAQ → S-6; production/Hawking → S-11–S-14; Plaga/Rössler/Wagner-Sancho → S-16/S-18/S-19; Ord/Kent/Tegmark-Bostrom/LA-602 → S-20–S-23). Nothing lost; this cross-referencing confirms the disjoint slicing.

B. Genuine considered-and-rejected drops (not in the pool)

  1. Auger proceedings versions (Yamamoto 2007, Matthiae 2007 — the actual citations inside G-M; Ravignani 2025 19-yr update) — superseded by the fuller peer-reviewed S-5. [slice B]
  2. Narrower/overlapping white-dwarf inputs (Schmidt-Smith 1995, Cuadrado 2004, Nalezyty-Madej 2004; cooling-age/mass papers Liebert 2005, Althaus 2007) — same named-star sample as S-10. [slice B]
  3. CERN’s rebuttal to Rössler (Nicolai 2008; Giulini-Nicolai 2008) — high-quality, on-topic, but folded into S-18’s prose instead of its own node. [slice C] ⚠ the only official rebuttal to a named critic; step 2 may want it as its own node/basis.
  4. Rössler’s ECHR suit — mentioned on S-18, not noded (brief named only the US suit). [slice C]
  5. Casadio-Harms 2002 (microcanonical BH-remnant model Plaga builds on) — treated as discovery-hub background by both slice A and slice C, noded by neither. ⚠ it is the mechanism S-16 relies on.
  6. Semantic-Scholar citation counts — dropped in favor of INSPIRE-HEP for HEP papers (SS undercounts badly: Dimopoulos-Landsberg 33 vs 1177). Provenance note, not a source drop.

C. Flagged GAPS (things a top-up could add — see audit)

  1. Direct ATLAS/CMS micro-BH-production searches (all null to date) — cut for budget; a real independent empirical leg of “are they even made / did the predicted signatures show.” [slice A]
  2. Additional strangelet searches (STAR Au-Au ~10⁻⁶; AGS/SPS Si+Cu, Si+Au, S+W) — capped at S-8. [slice B]
  3. Neutron-star observational dataset — none found; G-M’s NS bound argues from textbook population properties, no citable named-object paper (unlike the WD leg’s S-10). [slice B]

Audit against the 1a plan

Duplicates: none. All 23 nodes carry distinct arXiv-ids/DOIs/URLs. Checked the near-collisions: S-1 (0806.3381, G-M astrophysical bounds) vs S-7 (0806.3414, LSAG) — different papers; S-1 vs S-17 (0808.4087, G-M reply to Plaga) — different papers (as the brief flagged); S-16 (0808.1415) vs S-17 (0808.4087) — different. Shared authors across nodes (Sandweiss S-3+S-8; Dimopoulos S-11+S-13; Giddings S-1+S-12+S-17; Mangano S-1+S-7+S-17) are all distinct artifacts. No move/merge performed.

Collision-control: held. Each canonical primary noded by exactly one slice; the three “do-not-touch” hand-off lists were respected, including the deliberate exception (G-M reply-to-Plaga 0808.4087 → slice C as part of the critic exchange, while the main G-M astro paper → slice B). Node counts match the plan’s slices (A: S-6/7/9/11-15 = 8; B: S-1-5/8/10 = 7; C: S-16-23 = 8; total 23).

Sides of the debate (strict on balance):

  1. Establishment/pro-safety — ~15 nodes (S-1,3,4,5,6,7,8,9,10,11,12,13,14 + reply S-17); dominant, as the plan expected.
  2. Critics/dissent — 3 dedicated nodes in their own words (Plaga S-16, Rössler S-18, Wagner-Sancho S-19), with the Plaga↔G-M exchange closed (S-17). Slice C confirmed no other citable scientific dissenter of the 2008 episode exists. Given a genuinely lopsided real literature, dissent is represented, not crowded out.
  3. Meta/methodology — 4 nodes (S-20,21,22,23), incl. S-23 attacking the empirical backbone.

→ All three sides present; none missing or crowded out.

Independent-data axes (lenient on depth): all 5 flagged recurring bases represented — cosmic-ray survival (S-2,5; underlies S-1/3/4/6/7/9), WD/NS bound (S-1 + WD dataset S-10), Hawking (S-14), ADD production cross-section (S-11,12,13; caveat S-15), risk-methodology (S-20,21,22) — plus the anthropic objection (S-23) that undercuts axis 1. Thin spots are depth-only: no neutron-star dataset, no direct ATLAS/CMS null-result node, and the Casadio-Harms mechanism (the basis of critic S-16) is unnoded.

Verdict: no top-up round needed. Balance holds across all three sides and all five data axes; every thin spot is depth, not balance, which the test-run bar treats leniently. If step 2 wants marginal robustness it could, in priority order, add: (1) the Casadio-Harms remnant model (props up the one real scientific critic), (2) a direct ATLAS/CMS micro-BH search null result, (3) the CERN/Nicolai-Giulini rebuttal to Rössler as its own node — but none is required.

Carries for step 2 (could mislead if unflagged)

  1. Sibling dir analyses/black-holes/ (no -tests) is a different, earlier full run of the identical case, with overlapping S-ids and already-populated step-2/3 fields (data_basis, scores). Do NOT read or copy from it. (Already logged MAJOR.)
  2. Shared cosmic-ray-survival basis (group 5) underlies S-1, S-2, S-3, S-4 and the reassurance in S-6/S-7/S-9 — build ONE D-node; do not count these as independent corroboration (the plan’s central anti-double-count instruction). S-23 attacks this very premise. Searchers recorded the dependency in prose only, not data_basis (as instructed).
  3. S-5 (Auger 2020) is a fuller, later measurement of the same spectrum, not the exact 2007 proceedings G-M cited — attribute it as “the UHECR flux dataset,” not “the citation inside G-M.”
  4. S-7 LSAG authors were wrong in the seed material and corrected on the node (real list: Ellis, Giudice, Mangano, Tkachev, Wiedemann). Already logged + fixed. Citation-count provenance is mixed (INSPIRE-HEP for HEP papers, not Semantic Scholar).
  5. S-17 (G-M reply) is by interested parties (Mangano = LSAG co-author + CERN staff) — not a neutral referee when weighing the S-16↔S-17 exchange.
  6. CERN’s rebuttal to Rössler is inside S-18’s prose, not its own node (see exclusions B3).