The strong interaction has color ''charge'',the electromagnetic interaction has electric charge,the gravity interaction has mass ''charge'',then what is the charge in weak interaction?(adsbygoogle = window.adsbygoogle || []).push({});

Each interaction corresponds to a symmetry.Symmetry SU(3) for strong interaction,

SU(2)xU(1) for electroweak interaction,then what is the symmetry for gravity interaction?

Why we know the gluons in QCD carry color charge,or other saying when quarks absorb or emit gluon their color must be changed?

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# What is the charge of weak interaction?

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