@prefix isq: <https://w3id.org/standards/isq/ontologies/core/> .
@prefix smart: <https://example.org/smart-sdu/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<isq:t10-26>
  a isq:Entry ;
  rdf:type isq:Quantity ;
  rdf:type smart:TermEntry ;
  dcterms:identifier "10-26" ;
  skosxl:prefLabel "level width"@en ;
  skosxl:altLabel "ii(Gamma)"@en ;
  skos:definition "quotient of the reduced Planck constant and the mean life:\n\n[stem%unnumbered]\n++++\nii(Gamma) = \"P{hbar}\"/tau\n++++\n\nwhere\n\nstem:[\"P{hbar}\"]:: is the reduced Planck constant (<<iso80000-1>>), and\nstem:[tau]:: is mean duration of life (<<t10-25>>)\n"@en ;
  smart:hasBindingnessType "bindingness-type:normative" ;
  dcterms:isPartOf <isq:part-10> ;
  isq:hasUnit [
    skos:notation "eV" ;
    skosxl:prefLabel "electronvolt"@en
  ] ;
  isq:hasUnit [
    skos:notation "J" ;
    skosxl:prefLabel "joule"@en
  ] ;
  isq:hasUnit [
    skos:notation "kg*m^2*s^(-2)" ;
    skosxl:prefLabel "kilogram square metre per second squared"@en
  ] ;
  skos:note "Level width is the uncertainty of the energy of an unstable particle or an excited state of a system due to the Heisenberg principle.\n\nThe term energy level refers to the configuration of the distribution function of the density of states. Energy levels may be considered as discrete, like those in an atom, or may have a finite width, like e.g. this item or like e.g. the valence or conduction band in solid state physics. Energy levels are applicable to both real and virtual particles, e.g. electrons and phonons, respectively.\n"@en ;
  iso:urn <urn:iso:std:iso:80000:-10:ed-2:en:item:10-26> .