MINERvA Simulation - HCAL and ECAL Calorimetry Jaewon Park University of Rochester Jupiter/MINERvA Group Meeting, Oct 4, 2006
2 More Different OD slots OD frame size is kept constant V6, V7 has one more slot than V4 Having more slot means less interaction material within limited space V9 is a extreme case of V6 and V7 V8 is similar to V4 More slots have no gain V8 is a simpler design to make orig v v v v v v Slot sizes
3 Theta dependence with 3GeV, 5GeV Old data used 2.2GeV Try with higher energy Leakage is a function of proton beam energy More leakage on higher energy Is it fair to use a=1.3 for higher energy?
4 Finding calibration const with infinite OD 2.2GeV5GeV Orig geom + 5cm x 19 layers Previous a=1.3 was found with 2.2GeV proton beam a=1.2 seems best with 5GeV Try to make total energy constant
5 Trying leakage correction Relative calibration const for OD=1.625 intead of 1.3 Theoretically wrong, but it seems to work Better way is using interaction length but it’s a function of energy
6 Detector Logical Region Scint only ECAL HCAL Nucl. target For HCAL study, lead can be ignored For theta=0deg, particle will hit DS-HCAL. For theta=40deg, it passes both DS-HCAL and OD
7 Detector Logical Region Scint only ECAL HCAL Nucl. target
8 Interaction length as function of theta ID DS OD ID DS+OD ID ID+DS+OD
9 Interaction length: Comparison with data 2.2GeV V4 OD E_od is 1.3 times scaled Tried to make leakage correction with interaction length but haven’t succeeded yet
10 Interaction length: Comparison with data 5GeV proton V4 OD E_od is 1.3 times scaled
11 Thicker ECAL Add high theta data point 3mm lead gives ~5% decrease on resolution (previously estimated ~10%) It’ll interesting to try with different OD slot position
12 X-plane U-plane V-plane OD XU XV XU XV X-plane U-planeV-plane PMT box number Four frames
13 short mid short mid
14 Additional clear cable
Additional clear cable Simple try Need to use 10 th row in PMT array
16 short mid short mid Only problem with the mapping is difficulty to change 4(bottom) 5 and 17(bottom) 16 (Need to check with PVC PMT boxes!) These connection would use mid connector instead of short one