SWEET Ontology
type: Ontology
version info: 2.3
imports: matr.owl
imports: statePhysical.owl
imports: relaSpace.owl
imports: stateSpaceScale.owl

GammaRay
type: Class
subclass of: Photon
comment: Gamma rays are a form of electromagnetic radiation or light emission of frequencies produced by sub-atomic particle interactions, such as electron-positron annihilation or radioactive decay. Gamma rays are generally characterized as electromagnetic radiation having the highest frequency and energy, and also the shortest wavelength, within the electromagnetic spectrum, i.e. high energy photons. Due to their high energy content, they can cause serious damage when absorbed by living cells.

Nucleon
type: Class
equivalent class: Class
  union of: Neutron
  union of: Proton
comment: A collective name for the two baryons: neutron and the proton.