Why a photon (or gluon) does 'NOT' have spin-3, 5, 7, 9 etc.?

Subject: Why a photon (or gluon) does 'NOT' have spin-3, 5, 7, 9 etc.?

Date: Tue Sep 9 08:56:27 2014
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Area of science: Physics
ID: 1410278187.Ph

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Why does a photon (or gluon) not have spin-3, 5, 7, 9, ..etc. but instead have
spin-1? If, for example, a photon (or gluon) had spin-3 or 5, does the photon no
longer behave like a photon? or it(=spin-3 or 5 photon or gluon) still behaves
like a spin-1 photon (or gluon)?, or does it create any theoretical
inconsistency according to quantum field theory (QFT)? Does QFT provide or
explain "why" each elementary particle has the observed amount of spin?

Re: Why a photon (or gluon) does 'NOT' have spin-3, 5, 7, 9 etc.?

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