If photons had S=0, not 1, what changes?

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If photons have S=0, not 1, what changes?

If photons were realized to have Spin=0, then what would have to change?
 
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How about HALF OF THE STANDARD MODEL...??How about ALL ELECTROMAGNETISM AT CLASSICAL LEVEL...??

Daniel.

P.S.I think QCD would be unaffected.Same with GR.
 
what_are_electrons said:
If photons were realized to have Spin=0, then what would have to change?

If you accept that photons can have spin 1,0,-1. Then your photon cannot be massless. The fact that a photon has NO spin = 0 has to do with the photonmass being equal to zero.

Keep in mind that those 1,0 and -1 values are not just the spin. They are the projection of the spin onto some axis (like the z-axis). The quantumnumber s_{z} = (+/-)s, (+/-)s-1, ..., 0 is the projection of s onto the z-axis.

marlon
 
marlon said:
If you accept that photons can have spin 1,0,-1. Then your photon cannot be massless. The fact that a photon has NO spin = 0 has to do with the photonmass being equal to zero.

Keep in mind that those 1,0 and -1 values are not just the spin. They are the projection of the spin onto some axis (like the z-axis). The quantumnumber s_{z} = (+/-)s, (+/-)s-1, ..., 0 is the projection of s onto the z-axis.

marlon
If I read correctly, you've written that photons are currently defined to have spin = 0. The nice chart made by the SLAC people list the Photon as having a Spin = 1.
 
That's your problem.You didn't read correctly.You interpreted in an incorrect way the words written by Marlon... :rolleyes:

Daniel.
 
what_are_electrons said:
If I read correctly, you've written that photons are currently defined to have spin = 0. The nice chart made by the SLAC people list the Photon as having a Spin = 1.


Dextercioby is right. You did not read my post correctly. I said the exact opposite of what you are saying right here. Photons do NOT have spin 0

marlon
 
marlon said:
Dextercioby is right. You did not read my post correctly. I said the exact opposite of what you are saying right here. Photons do NOT have spin 0

marlon
That's exactly why I asked for clarification. Thanks.
 
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