AlphaNumeric
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This might be a fantastically stupid question, but does the photon has a dipole? I'm almost certain it doesn't since a dipole is formed when two charges of opposite sign are very close to one another (at least compared to the distance an observer is from them) and unlike say the neutron which has internal charges, yet neutral overall, the photon doesn't have that internal structure and so has no dipole.
Am I right in guessing that the neutrino is predicted to have no dipole either, since it's supposed to be a neutral fundamental particle? A bit of Googling seemed to imply current experimental results give very small upper bounds on it's possible dipole strength.
Are all 'fundamental' (at least to current theories) neutral particles dipole-less (Z boson, graviton etc)?
Or am I just way off the plot and should get back to reading some (quantum) electrodynamics
Am I right in guessing that the neutrino is predicted to have no dipole either, since it's supposed to be a neutral fundamental particle? A bit of Googling seemed to imply current experimental results give very small upper bounds on it's possible dipole strength.
Are all 'fundamental' (at least to current theories) neutral particles dipole-less (Z boson, graviton etc)?
Or am I just way off the plot and should get back to reading some (quantum) electrodynamics
