strong interaction

Strong contribution boundary

Record whether the claim concerns binding, a transition, scattering or a medium response, including possible mixed contributions.

1. Which specific contribution or observable is attributed to the strong interaction? definition
2. Could electromagnetic or weak dynamics produce the same observed final state, and how are their contributions distinguished? boundary

Colour and effective participants

Record colour representations in a microscopic description or hadronic participants in an effective description.

1. Are the resolved participants quarks and gluons, or colour-singlet hadrons described through effective interactions? definition
2. What calculation or evidence supports connecting the chosen effective interaction to strong dynamics? provenance

Running coupling context

Require scales and conventions alongside any recorded strong coupling. [CMS coupling measurement](https://cmsexperiment.web.cern.ch/news/quarks-running-freedom-probing-strong-force-high-precision)

1. What physical momentum scale characterises the observable, and how were renormalisation and any factorisation scales chosen? measurement
2. Which scheme, active-flavour prescription and uncertainty accompany the quoted alpha_s? provenance

Controlled description

Record why perturbative QCD, lattice QCD, an effective theory or a phenomenological treatment is suitable for this observable.

1. What expansion, numerical limit or empirical validation supports this method in the specified regime? boundary
2. Which missing inputs or uncontrolled corrections require changing the method or withholding a prediction? action

Hadronisation dependence

Record how a partonic prediction is translated into hadron-level evidence and what uncertainty that translation introduces. [CERN partons to hadrons](https://home.cern/partons-hadrons/)

1. Which hadrons or jet observables support the inferred quark or gluon dynamics? measurement
2. Which fragmentation inputs or hadronisation assumptions affect the inference, and where were they validated? provenance

Deconfinement evidence

Record medium conditions and converging observables supporting a deconfinement interpretation, including jet modification where relevant. [CERN heavy ions and quark-gluon plasma](https://home.cern/science/physics/heavy-ions-and-quark-gluon-plasma/)

1. Which temperature, density or energy-density estimates apply, and how were they inferred? measurement
2. Which observations support deconfined matter, and which competing explanations remain viable? boundary

Strong channel admissibility

Record thresholds and relevant conservation constraints, distinguishing net flavour changes from quark-antiquark pair production.

1. Do the proposed initial and final states satisfy energy-momentum, angular-momentum, charge and net-flavour constraints for a strong process? boundary
2. If a channel is allowed, what additional matrix-element or empirical information is needed before estimating its rate? action

Residual interaction description

Record the hadronic channel, effective interaction and range of validity needed to interpret binding or scattering.

1. Which hadrons, spin and isospin channel, and momentum or separation range define the residual interaction being modelled? definition
2. Which phase shifts or binding observables constrain the description, and are additional many-body terms needed? measurement

Measurement comparability

Record collision or bound-state conditions, observable definitions and corrections that determine comparability.

1. What beam species, energy, kinematic cuts, channel and observable definition apply, including the jet algorithm where relevant? measurement
2. Which dataset or calculation supplies the result, and what detector, background or unfolding corrections were applied? provenance

Prediction readiness

Assess whether uncertainties and alternative descriptions permit the intended use of a strong-interaction prediction.

1. Do experimental and theoretical uncertainties, including relevant correlations, support the proposed interpretation or distinguish competing descriptions? measurement
2. Should the agent proceed with the calculation, request a discriminating observable, or leave the mechanism unresolved? action

Kinds and varieties

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these kinds and varieties hold for the sense of strong interaction this model covers, and on what evidence? provenance

Identifiers and schemes

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these identifiers and schemes hold for the sense of strong interaction this model covers, and on what evidence? provenance

Standards and regulation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these standards and regulation hold for the sense of strong interaction this model covers, and on what evidence? provenance

Real-world use

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these real-world use hold for the sense of strong interaction this model covers, and on what evidence? provenance

Typical measurements

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these typical measurements hold for the sense of strong interaction this model covers, and on what evidence? provenance

Failure modes and hazards

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these failure modes and hazards hold for the sense of strong interaction this model covers, and on what evidence? provenance

Regional variation

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these regional variation hold for the sense of strong interaction this model covers, and on what evidence? provenance

Neighbouring kinds and how to tell them apart

Reported by the breadth pass; each item needs checking against its source before it becomes normative.

1. Which of these neighbouring kinds and how to tell them apart hold for the sense of strong interaction this model covers, and on what evidence? provenance