Claims
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KindShowingImportancePrizesTopicMonte Carlo event generators
General-purpose Monte Carlo event generators for high-energy collider physics (e.g. Pythia, Herwig, Sherpa), their parton-shower algorithms, infrared cutoffs, tunings, and model dependence. Claims about how generator parameters or shower settings enter predictions and measurements belong here; air-shower interaction models (EPOS-LHC, QGSJet, SIBYLL) belong under Hadronic interaction models.
Shower-cutoff and hadronization effects shift the NLO+PS top-quark mass parameter only by amounts of order Lambda_QCD
SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massimportance · minorImportance 0.35, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
The Monte Carlo top-quark mass lacks a precise field-theoretic definition
SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massParticle physicsimportance · minorImportance 0.35, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
The Monte Carlo top-quark mass equals the pole mass to within a few hundred MeV
SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massParticle physicsimportance · minorImportance 0.40, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
The parton-shower infrared cutoff makes the generator top-quark mass a short-distance mass differing from the pole mass by roughly half a GeV
SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massParticle physicsimportance · minorImportance 0.40, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
Calibration studies find the Monte Carlo top-quark mass agrees with the MSR mass at 1 GeV within about 200 MeV
VerifiedThe evidence, examined directly, establishes the claim.constitution →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massimportance · minorImportance 0.30, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
At next-to-leading order, the coherent-branching quark mass parameter differs from the pole mass by a shift linear in the shower infrared cutoff
SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massimportance · minorImportance 0.30, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
Next-to-leading-logarithmic coherent-branching evolution determines the jet-mass peak position to full next-to-leading order
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 →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Particle physicsPerturbative QCDimportance · minorImportance 0.30, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
The short-distance interpretation of the generator top-quark mass has not been established for pT-ordered dipole parton showers
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 →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massParticle physicsimportance · minorImportance 0.30, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
Angular-ordered parton showers with an infrared cutoff produce a generator quark mass that is a cutoff-dependent short-distance mass, not the pole mass
SupportedThe evidence favors the claim, but the examination is incomplete or the evidence is indirect.constitution →empirical · derivedA factual claim that rests on inference from other evidence rather than direct observation.constitution →Top-quark massimportance · minorImportance 0.35, from 0 to 1 · minor: narrow or largely settled, cheap to get right. Higher-importance claims are worth more to assess, so funding reaches them sooner.constitution →
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