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.
The calibration system for the E989 experiment at Fermilab
ANASTASI, ANTONIO
2017
Abstract
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.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.14242/101201
URN:NBN:IT:UNIME-101201