# Antiparticles: only distinct propery is C(Q)?

1. Apr 29, 2005

### neurocomp2003

[Q0]Is the only distinct difference between a particle and antiparticle the charge?

Does it apply to
Quarks
Electron
Proton
Neutron(does it have a antiparticle???)
Neutrinos.
FCPs(do FCP have charge? well light doesn't but does a gluon...and whats the other one called not the graviton)
[Q1]
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. Apr 30, 2005

### dextercioby

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.

Daniel.

3. Apr 30, 2005

### Staff: Mentor

Antineutrinos can be produced in accelerator labs just as easily as neutrinos. To produce muon-antineutrinos, you start with a beam of $\mu^{+}$ and let them decay; just as to produce muon neutrinos, you start with a beam of $\mu^{-}$ and let them decay.

4. Apr 30, 2005

### neurocomp2003

mesons have charge? i thought the sum of the two charges is 0?

5. Apr 30, 2005

### juvenal

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.