A Remarkable Relation in the Gauge Sector of Electroweakdynamics
Abstract
A precise empirical relation between the electromagnetic coupling alpha(mZ) and sin2(thetaelleff) --where thetaelleff is the effective electroweak mixing angle extracted from Z leptonic decays-- is made manifest: alpha(mZ) = sin3(thetaelleff)*cos(thetaeff/(4π.
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