First Stage Analysis of the Energy Response and Resolution of the Scintillator ECAL in the Beam Test at FNAL, 2008

A beam test of the ScECAL prototype module has been performed in the period Aug 19 - Oct 04 2008 at FNAL meson beam test facility. This beam test is the first comprehensive beam test for the ScECAL combined with Analog ScHCAL using 1 - 32 GeV electron, pion and muon beams. As a preliminary result of the first stage analysis, we obtain for the ScECAL a relative energy resolution for single electrons of σE/E = (1.44±0.02)%⊕(15.15±0.03)/$/ \sqrt{E_{beam} GeV)} \%$, with the quoted uncertainty purely statistical. The deviation from the perfect linear response is found to be less than 6%.