• Question: when you mean develop precise methods to measure things when the forces between particles are either weak, medium or strong.what forces something between particles.

    Asked by anon-217062 to Edoardo on 18 Jun 2019.
    • Photo: Edoardo Vescovi

      Edoardo Vescovi answered on 18 Jun 2019: last edited 18 Jun 2019 10:06 am


      I sketch my research in the question “what do you want to discover in your research ?”. There you read that particles and forces have nothing to do with the real ones. Let me make very rough approximations to answer.
      — Which force? My toy models contain point-like particles similar to photons and gluons of the real-world Standard Model (https://en.wikipedia.org/wiki/Standard_Model#/media/File:Standard_Model_of_Elementary_Particles.svg). These particles carry the electric-magnetic force and the force forming atomic nuclei in the real world. I’d say that mine are pretty much the same.
      — How strong the force? In my toy models, the force intensity is controlled by a number, called “coupling constant”, which can be seen as a cousin of the real-world electric charge. In the real world the electric charge has fixed value, in my fictitious universe the coupling constant is a handle to turn up and down as you like. We’re not after matching calculations and experimental data after all.
      — Which matter particles? Ordinary matter is made of quarks and leptons (see link again) and similar particles are inserted in my models too, in variable number though.
      — All calculations (of collisions, energies between particles etc.) are done on paper and pc. We use different calculational methods (which involve approximations — or not) depending on the value of the coupling constant (small and large — or a medium number close to 1).
      Feel free to comment if still unclear.

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