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Canonical static concept record

Quark

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Summary

A color-charged spin-one-half fermion occurring in six flavors and confined into hadrons by QCD.

Record metadata

Concept sources

Incoming relations (arrows to this concept)

Each relation below ends at this concept.

Elementary particleQuark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

In the Standard Model, quarks are elementary spin-1/21/2 particle species.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

FermionQuark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Quarks are spin-one-half fermions carrying color charge.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

Quantum chromodynamicsQuark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

QCD describes color-charged quark fields.

How to interpret this relation type

A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.

Relation sources

Quark fieldQuark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Quark particles are excitations/asymptotic partonic states of quark fields, though isolated quarks are not asymptotic states in the confined regime.

How to interpret this relation type

The source is a material constituent, structural component, or underlying quantum field whose excitation realizes the target physical system or particle. The edge label and detail must distinguish composition from field excitation; neither implies a simple classical sum of parts.

Relation sources

SLAC deep-inelastic scattering experimentsQuark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Scaling and hard scattering made quark-like partons empirically unavoidable and transformed quarks from a classification device into physical constituents.

How to interpret this relation type

The source experiment, observation, anomaly, or problem materially motivated the development, revision, or acceptance of the target concept. Historical influence is not logical derivation; the edge detail states the documented role and avoids retrospective origin myths.

Relation sources

Outgoing relations (arrows from this concept)

Each relation below starts at this concept.

QuarkBaryon number

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Quarks carry baryon number 1/31/3 and antiquarks carry 1/3-1/3.

How to interpret this relation type

The target represents a state, property, observable, or state-dependent description associated with the source system or theory.

Relation sources

QuarkBottom quark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Bottom quark is one of six quark flavors.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

QuarkCharm quark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Charm quark is one of six quark flavors.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

QuarkColor charge

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

This field or particle carries nontrivial color structure.

How to interpret this relation type

The target represents a state, property, observable, or state-dependent description associated with the source system or theory.

Relation sources

QuarkDown quark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Down quark is one of six quark flavors.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

QuarkFlavor

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

The six quark species are distinguished by flavor.

How to interpret this relation type

The target represents a state, property, observable, or state-dependent description associated with the source system or theory.

Relation sources

QuarkStrange quark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Strange quark is one of six quark flavors.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

QuarkTop quark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Top quark is one of six quark flavors.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources

QuarkUp quark

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Up quark is one of six quark flavors.

How to interpret this relation type

The target is a member or subtype of the broader source class.

Relation sources