Do Massless Particles Feel Forces Beyond Gravity?

lark
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do massless particles not feel forces - other than gravity? The only massless particles I know are photons and neutrinos. Photons feel gravity, but other than that, once a photon is created, is its energy fixed?

Laura
 
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you only know one, its photon. graviton is thought to be massless since it travel (if exist) at the speed of light. neutrino is known to has mass. They don't feel force like we do but react with particles that is able to react with the force they are carrieng. Photon with electrons and protons and such
 
Gluons are massless and feel the strong force.
 

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