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The calorimeter of the muon $g-2$ experiment.

Anastasi A., Bartolini M., Bedeschi F., Cauz D., Dabagov S., Di Sciascio G., Driutti A., Escalante O., Ferrari C., Fienberg A.T., Fioretti A., Gabbanini C., Gioiosa A., Hampai D., Hertzog D.W., Iacovacci M., Kaspar J., Lusiani A., Mastroianni S., Moricciani D., Pauletta G., Piacentino G.M., Raha N., Rossi E., Venanzoni G.
  Venerdì 30/09   15:00 - 18:00   Edificio CLA - Aula T3   I - Fisica nucleare e subnucleare
The electromagnetic calorimeter for the new muon $(g-2)$ experiment at Fermilab will consist of arrays of PbF${}_{2}$Cerenkov crystals read out by large-area silicon photo-multiplier (SiPM) sensors. We report here the requirements for this system, the achieved solution and the results obtained from a test beam using 2.0 -- 4.5 GeV electrons with a 28-element prototype array at SLAC in summer 2014.