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Antiparticles: only distinct propery is C(Q)?

  1. Apr 29, 2005 #1
    [Q0]Is the only distinct difference between a particle and antiparticle the charge?

    Does it apply to
    Neutron(does it have a antiparticle???)
    FCPs(do FCP have charge? well light doesn't but does a gluon...and whats the other one called not the graviton)
    if neutrinos have no charge then how do they have antineutrinos?

    [Q2] Is the EM spectrum discretized(intervals) or can you create a EM wave of any wavelength/frequency you choose?

    [Q3]do mesons(q/^q) have fractional charges?
    Last edited: Apr 29, 2005
  2. jcsd
  3. Apr 30, 2005 #2


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    Homework Helper

    Well,generally,yes,but there are quantum numbers (e.g.color & lepton) which differ from particle to antiparticle.

    Yes,lepton number differs and helicity,too.Antineutrinos are right handed.They're theorized,but not observed.

    Any frequency.

    No.The mesons have integer charge.

  4. Apr 30, 2005 #3


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    Staff: Mentor

    Antineutrinos can be produced in accelerator labs just as easily as neutrinos. To produce muon-antineutrinos, you start with a beam of [itex]\mu^{+}[/itex] and let them decay; just as to produce muon neutrinos, you start with a beam of [itex]\mu^{-}[/itex] and let them decay.
  5. Apr 30, 2005 #4
    mesons have charge? i thought the sum of the two charges is 0?
  6. Apr 30, 2005 #5
    Charged pions, charged rho's, charged kaons, charged D's, charged B's, etc.

    Take one quark with a charge of 1/3 and another quark with charge of 2/3.
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