The muon anomaly ( g − 2 ) μ / 2 has been measured to 0.54 parts per million by E821 experiment at Brookhaven National Laboratory, and at present there is a 3–4 standard-deviation difference between the Standard Model prediction and the experimental value. 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 of the new g-2 experiment at Fermilab / Anastasi, A.; Babusci, D.; Cantatore, G.; Cauz, D.; Corradi, G.; Dabagov, S.; Di Meo, P.; Di Sciascio, G.; Di Stefano, R.; Ferrari, C.; Fienberg, A.T.; Fioretti, A.; Gabbanini, C.; Hampai, D.; Hertzog, D.W.; Iacovacci, M.; Karuza, M.; Kaspar, J.; Marignetti, F.; Mastroianni, S.; Moricciani, D.; Pauletta, G.; Santi, L.; Venanzoni, G.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 824(2016), pp. 716-717.
Titolo: | The calibration system of the new g-2 experiment at Fermilab |
Autori: | |
Data di pubblicazione: | 2016 |
Rivista: | |
Citazione: | The calibration system of the new g-2 experiment at Fermilab / Anastasi, A.; Babusci, D.; Cantatore, G.; Cauz, D.; Corradi, G.; Dabagov, S.; Di Meo, P.; Di Sciascio, G.; Di Stefano, R.; Ferrari, C.; Fienberg, A.T.; Fioretti, A.; Gabbanini, C.; Hampai, D.; Hertzog, D.W.; Iacovacci, M.; Karuza, M.; Kaspar, J.; Marignetti, F.; Mastroianni, S.; Moricciani, D.; Pauletta, G.; Santi, L.; Venanzoni, G.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 824(2016), pp. 716-717. |
Abstract: | The muon anomaly ( g − 2 ) μ / 2 has been measured to 0.54 parts per million by E821 experiment at Brookhaven National Laboratory, and at present there is a 3–4 standard-deviation difference between the Standard Model prediction and the experimental value. 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. |
Handle: | http://hdl.handle.net/11390/1083993 |
Appare nelle tipologie: | 1.1 Articolo in rivista |