Butch Posted July 17, 2018 Share Posted July 17, 2018 Quarks are said to have no internal structure, however there are many types of quarks. On the face it would seem that they are defined by properties (Mass, Spin, Charge), how do we differentiate between properties and structure when many properties are defined by particles? Link to comment Share on other sites More sharing options...
swansont Posted July 17, 2018 Share Posted July 17, 2018 They have isospin, strangeness, charm, topness and bottomness. Basically, when new quarks were identified, we tagged them with whatever property it is that differentiate them from up and down quarks. There's also color, which enters into their interactions. Link to comment Share on other sites More sharing options...
mathematic Posted July 17, 2018 Share Posted July 17, 2018 No structure means they are not composite particles. Link to comment Share on other sites More sharing options...
Strange Posted July 17, 2018 Share Posted July 17, 2018 Quarks and electrons and photons all have completely different properties but they are all elementary / fundamental particles and, hence, have no internal structure. Link to comment Share on other sites More sharing options...
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