The identity of quarks



The pion consists of two quarks. When we say that the wavefunction of
the neutral pion is (uu'-dd')/sqrt(2), where u' and d' are the
antiquarks of the up and down quarks, doesn't that seem strange to you,
that a superposition of two-quarks states is still a two-quark state ?
Is the identity of quarks lost in this description? Shouldn't the
fundamental constituents of matter have well-defined identities?
Suppose you are going to describe this particle to your child, what
will you tell him or her about its constituents?

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Relevant Pages

  • The identity of quarks
    ... The pion consists of two quarks. ... that a superposition of two-quarks states is still a two-quark state? ... fundamental constituents of matter have well-defined identities? ...
    (sci.physics.particle)
  • The identity of quarks
    ... The pion consists of two quarks. ... that a superposition of two-quarks states is still a two-quark state? ... fundamental constituents of matter have well-defined identities? ...
    (sci.physics.particle)
  • Re: The identity of quarks
    ... antiquarks of the up and down quarks, doesn't that seem strange to you, ... that a superposition of two-quarks states is still a two-quark state? ... Is the identity of quarks lost in this description? ... fundamental constituents of matter have well-defined identities? ...
    (sci.physics.particle)