The calibration system of the new g-2 experiment at Fermilab

Year: 2016

Authors: 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.

Autors Affiliation: Univ Cassino, I-03043 Cassino, Italy; Ist Nazl Fis Nucl, Lab Nazl Frascati, POB 13, I-00044 Frascati, Italy; Univ Messina, Dipartimento Fis & Sci Terra, Messina, Italy; Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy; Univ Naples Federico II, Naples, Italy; CNR, Ist Nazl Ott, I-56100 Pisa, Italy; Univ Rijeka, Rijeka, Croatia; Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy; Univ Trieste, Trieste, Italy; Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy; GC Udine, Trieste, Italy; Univ Udine, I-33100 Udine, Italy; Univ Washington, Seattle, WA 98195 USA.

Abstract: The muon anomaly (g-2)(mu)/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. (C) 2015 Elsevier B.V. All rights reserved.

Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Volume: 824      Pages from: 716  to: 717

More Information: National Science Foundation (NSF); NSF – Directorate for Mathematical & Physical Sciences (MPS) 1337542
KeyWords: Instrumentation; Calorimetry; Calibration system
DOI: 10.1016/j.nima.2015.11.059

ImpactFactor: 1.362
Citations: 9
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