EM Calorimetry Study Jaewon Park University of Rochester MINERvA/Jupiter Group Meeting, Sep 5, 2006
Overview Preliminary ECAH study Electron beam is used. (Previous HCAL study uses proton beam) Looked at Energy dependence, Vertex Z dependence, theta dependence Try to find calibration constant for ECAL Here, ID means pure plastic scintillator
Calibration factor for ECAL After some tries, ECAL calibration factor 2.5 gives better resolution than 1.75
DS-ECAL Energy dependence Vz = 0cm Theta=0deg
DS-ECAL Vertex Z dependence 1GeV electron beam Theta=0deg
Barrel ECAL Theta dependence E=1GeV, Vz = 0cm Theta=0,10,…50de g 2.5 times OD calibration factor seems to prevent leakage but made resolution twice
Thicker ECAL 0.4mm lead gives ~20% decrease on resolution