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Homework Help: Yukawa particle

  1. Mar 10, 2008 #1
    i am kind stuck on this question as i don't know what equation to use. doesn't seem to be in any books.

    By considering possible interactions between protons and neutrons, determine the minimum number of charge states of yukawa's particle.

    Also why is the interquark force of finite range but appears to be carried by massless exchange particles(gluons).
  2. jcsd
  3. Mar 10, 2008 #2


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    1. The charges of the Y particles have to equal all possible proton-neutron charge differences.
    2. The q-q force appears to have a "confining" potential that does not vanish as r-->large.
    It seems to go like V~r for large r.
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