Naslov
The laser-based gain monitoring system of the calorimeters in the Muon g−2 experiment at Fermilab

Autori
Anastasi, A. ; Basti, A. ; Bedeschi, F. ; Boiano, A. ; Bottalico, E. ; Cantatore, G. ; Cauz, D. ; Chapelain, A.T. ; Corradi, G. ; Dabagov, S. ; Falco, S. Di ; Meo, P. Di ; Sciascio, G. Di ; Stefano, R. Di ; Donati, S. ; Driutti, A. ; Ferrari, C. ; Fienberg, A.T. ; Fioretti, A. ; Gabbanini, C. ; Gibbons, L.K. ; Gioiosa, A. ; Girotti, P. ; Hampai, D. ; Hempstead, J.B. ; Hertzog, D.W. ; Iacovacci, M. ; Incagli, M. ; Karuza, M. ; Kaspar, J. ; Khaw, K.S. ; Lusiani, A. ; Marignetti, F. ; Mastroianni, S. ; Miozzi, S. ; Nath, A. ; Pauletta, G. ; Piacentino, G.M. ; Raha, N. ; Santi, L. ; Smith, M. ; Sorbara, M. ; Sweigart, D.A. ; Venanzoni, G.

Izvornik
Journal of Instrumentation (1748-0221) 14 (2019), 11; P11025-P11025

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Physics - Instrumentation and Detectors ; High Energy Physics - Experiment

Sažetak
The Muon g−2g-2g−2 experiment, E989, is currently taking data at Fermilab with the aim of reducing the experimental error on the muon anomaly by a factor of four and possibly clarifying the current discrepancy with the theoretical prediction. A central component of this four-fold improvement in precision is the laser calibration system of the calorimeters, which has to monitor the gain variations of the photo-sensors with a 0.04\% precision on the short-term (∼1 \sim 1\, ∼1ms). This is about one order of magnitude better than what has ever been achieved for the calibration of a particle physics calorimeter. The system is designed to monitor also long-term gain variations, mostly due to temperature effects, with a precision below the per mille level. This article reviews the design, the implementation and the performance of the Muon g−2g-2g−2 laser calibration system, showing how the experimental requirements have been met.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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