ISSN 0253-2778

CN 34-1054/N

open

sin2θW theory and new physics

  • After briefly discussing the importance of the precise measurement of the weak mixing angle, the implication of the dark Z on the low-Q2 parity tests is discussed. 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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