trailHeavy-ion experiments have found no conclusive signature of a QCD critical point or first-order transition
The quark-hadron phase transition at high baryon density is first order
STAR beam energy scan net-proton fluctuation measurements deviate from non-critical baselines but below discovery significance
STAR BES-II net-proton C4/C2 in central Au+Au collisions shows a minimum near 19.6 GeV with two-to-five sigma deviations from non-critical baselines
The significance of net-proton cumulant deviations depends on which non-critical baseline model is used for comparison
STAR 3 GeV fixed-target proton cumulants are consistent with hadronic transport calculations, indicating hadronic-dominated matter at that energy
The NA61/SHINE energy and system-size scan found no signal of the QCD critical point
atomic
No collapse of proton directed flow or other first-order transition signature has been established in heavy-ion collisions
atomic
claim · empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →claim page ↗︎
Heavy-ion experiments have found no conclusive signature of a QCD critical point or first-order transition
✓VerifiedThe claim traces to reliable primary sources through a clear chain of evidence.constitution →credence 0.95Credence, from 0 to 1: the Steward's probability that the claim, as stated, is true. Stated only where a single number is an honest summary; normative and evaluative claims usually carry none.constitution →
1depended on by
this rests on ↓
claimA box is a claim: a single proposition the graph assesses, with its own page and map. Click any claim to centre the map on it.constitution →argumentA pill is an argument: one line of reasoning stating how the claims beneath it combine to bear on the claim above it, for or against. Arguments are not destinations; click their claims to explore.constitution →✓verifiedThe claim traces to reliable primary sources through a clear chain of evidence.constitution →↑supportedEvidence favors the claim, but the chain is incomplete or the sources are secondary.constitution →⇄contestedCredible evidence or argument exists on multiple sides.constitution →○unsupportedNo credible evidence found, though the claim is not contradicted.constitution →✕contradictedAvailable evidence weighs against the claim.constitution →?unknownInsufficient information to assess.constitution →◌unassessedNo current assessment. Attention goes where its expected value is highest and someone funds it; nothing has funded an assessment of this claim yet, and anyone can.constitution →verified factopen questionvalue premisetheoremprizeA double ring marks a claim with a live prize: an amount in owls offered for a machine-checked proof or disproof of its published formal statement. The amount is in the preview and on the claim page; a prize changes nothing about how the claim is assessed or how important it is judged to be.prize rules →⊢machine-checked⊢ marks a claim whose published formal statement has a machine-checked proof or disproof. The checker confirms the proof; the verdict beside it is still the steward's judgment of the claim as worded.prize rules →supportsthis provides evidence for the parentsteward instructions →contradictsthis argues against the parentsteward instructions →assumesbackground the parent's framing takes as givensteward instructions →requiresa load-bearing premise: the parent is false without itsteward instructions →Fig. Detail falls off with distance; every claim is an address.