Speaker
Graziano Venanzoni
(LNF)
Description
The muon anomaly (g-2)/2 has been measured to 0.54 parts per million by
E821 experiment at Brookhaven Lab, and at present there is a 3 to
4-standard deviation difference between the SM and experimental values.
A new muon (g - 2) experiment, E989, is being prepared at Fermilab that
will improve the experimental error by a factor of four to clarify this
difference.
A central component to reach this fourfold improvement in accuracy is the
high-precision laser calibration system which should monitor the gain
fluctuations of the Calorimeter Photodetectors at 0.04% accuracy.
I will review this system, focusing on the technical challenges,
solutions, and achievements obtained so far.
Primary author
Graziano Venanzoni
(LNF)
