Each relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
- Relation ID
nucleon_to_isospin- Relation type
- State / property description
state-description - Direction
- source → target
- Endpoint roles
- source: Has state / property description; target: State / property description of
- Authored annotation
- isospin doublet
Authored explanation
Proton and neutron form an approximate isospin doublet when electromagnetic effects and the up–down mass difference are neglected.
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
- Wikipedia — Isospin — Isospin · encyclopedic reference · source ID
wp-physics-isospin - nLab — Isospin — Isospin · mathematical physics reference · source ID
nlab-physics-isospin
This is an authored directed relation from the source endpoint to the target endpoint.
- Relation ID
nucleon_to_neutron- Relation type
- Classification
classification - Direction
- source → target
- Endpoint roles
- source: Has subtype; target: Classified as
- Authored annotation
- neutron
Authored explanation
The neutron is the neutral nucleon.
How to interpret this relation type
The target is a member or subtype of the broader source class.
This is an authored directed relation from the source endpoint to the target endpoint.
- Relation ID
nucleon_to_nuclear_manybody- Relation type
- Physical constitution / realization
composition - Direction
- source → target
- Endpoint roles
- source: Constitutes / realizes; target: Constituted / realized by
- Authored annotation
- nucleon constituents
Authored explanation
Nuclei are many-nucleon quantum systems of protons and neutrons.
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.
This is an authored directed relation from the source endpoint to the target endpoint.
- Relation ID
nucleon_to_proton- Relation type
- Classification
classification - Direction
- source → target
- Endpoint roles
- source: Has subtype; target: Classified as
- Authored annotation
- proton
Authored explanation
The proton is the positively charged nucleon.
How to interpret this relation type
The target is a member or subtype of the broader source class.