i still cant figure out how the higgs vev couples opposite chiral fermions(spinor components) to compose a physical electron/positron. (and actually in kurros 's thread it says that the yukawa interaction does not flip chirality nor helicity. what the hell does it mean for the yukawa interaction term making two terms that couple same chiral fields??). in that way how does it conserve angular momentum(since chirality and helicity is same in the massless limit...)??