Direct measurement of αQED(m Z 2 ) at the FCC-ee
Direct measurement of αQED(m Z 2 ) at the FCC-ee
When the measurements from the FCC-ee become available, an improved determination of the standard-model "input" parameters will be needed to fully exploit the new precision data towards either constraining or fitting the parameters of beyond-the-standard-model theories. Among these input parameters is the electromagnetic coupling constant estimated at the Z mass …