sin² θ_W theory and new physics
classification
✦ hep-ph
keywords
currentdarkweakanglebosonbrieflycouplesdiscuss
read the original abstract
After briefly discussing the importance of the precise measurement of the weak mixing angle, we discuss the implication of the dark Z on the low-Q^2 parity tests. The dark Z is a very light (roughly, MeV - GeV scale) gauge boson, which couples to the electromagnetic current as well as the weak neutral current.
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