The SLD Asymmetry in View of the LEP Results

الأصل · EN

LEP determines ² θ eff, by combining the various asymmetry measurements to be 0.2321 ± 0.0005. On the other hand, the left-right asymmetry as measured at SLC corresponds to = 0.2292 ± 0.0010. I will discuss the possibilities of this being i) a statistical fluctuation, ii) a hint for New Physics or iii) an experimental discrepancy.