ScECAL Fermilab Beam Test analysis ScECAL Group Meeting Kyungpook National University, Daegu, Republic of Korea, July 22 nd, 2011 Adil Khan

 For all the points 1,2,4,8,12, 15, 20,30,32 using the Mip constant values extracted at low Temperature.  Temperature Correction also applied  Energy Resolution and Mean are obtained using the Weighted average Method. Energy Resolution (%) σ constant 2.32±0.01 σ stochastic 13.76± ScECAL Linearity & Energy Resolutionc Energy resolution are obtained after fitting :

Devaition from Linearity Deviation from the Linear behavior of the measured deposited energy as a function of the beam momentum in case of using Mip constant corrected with low temperature and also Temperature correction

 For all the points 1,2,4,8,12, 15, 20,30,32 using the Mip constant values extracted at High Temperature.  Temperature Correction also applied  Energy Resolution and Mean are obtained using the Weighted average Method. Energy Resolution (%) σ constant 2.27±0.01 σ stochastic 13.8± ScECAL Linearity & Energy Resolution Energy resolution are obtained after fitting :

Devaition from Linearity Deviation from the Linear behavior of the measured deposited energy as a function of the beam momentum in case of using Mip constant corrected with High temperature and also Temperature correction

EnergyRun#MeanSigmaMeanErrSigmaErrW.ER(%) 32 GeV GeV GeV GeV GeV Using Mip Const at High Temperature and Temperature Correction

EnergyRun#MeanSigmaMeanErrSigmaErrW.ER(%) 8 GeV GeV

EnergyRun#MeanSigmaMeanErrSigmaErrW.ER(%) 2 GeV GeV Using Mip Const at High Temperature and Temperature Correction

EnergyRun#MeanSigmaMeanErrSigmaErrW.ER(%) 32 GeV GeV GeV GeV GeV Using Mip Const at Low Temperature and Temperature Correction

EnergyRun#MeanSigmaMeanErrSigmaErrW.ER(%) 8 GeV GeV

EnergyRun#MeanSigmaMeanErrSigmaErrW.ER(%) 2 GeV GeV Using Mip Const at Low Temperature and Temperature Correction

Temperature Information for all the MIP Runs of 2009 data Run#Date TimeStart TemperatureEnd Temperature Start timeEnd time1 st 2 nd 1 st 2 nd :178: :158: :1014: :0518: :216: :569: :2910: :376: :3918: :583: :194: :3218: :4716: :2716: :4317: Temperature Information for all the MIP Runs of 2009 data

Temperature Information for all the Energy Runs of 2009 data EnergyRun #Date TimeStart TemperatureEnd Temperature Start time End time1 st 2 nd 1 GeV :3518: :365: :2811: :2312: :0613: :2214: :4215: GeV :4212: :5513: :1615: :583:

Temperature Information for all the Energy Runs of 2009 data EnergyRun #Date TimeStart TemperatureEnd Temperature Start time End time1 st 2 nd 4 GeV :3415: :007: :267: :2710: :3811: :0812: GeV :3810: :0910: :2612: :515: :587: :0510:

Temperature Information for all the Energy Runs of 2009 data EnergyRun #Date TimeStart TemperatureEnd Temperature Start time End time1 st 2 nd 12 GeV :5513: :0313: GeV :4610: :0511: GeV :4014: :5615: :015: :117: GeV :195: :376: :597: GeV :5313: :1814: :2911:

BACK UPBACK UP

Temperature variation During 2009 Beam Test  Higher temperature is due to air conditioner malfunction.  Temperature variation during whole period of Beam test 2009, as we see, two different temperature regions, Higher and lower temperature region separated by a vertical line. The difference is about 5 o C Air Cond. repaired

MIP Calibration 2009 MIP Calibration Constant DataMeanRMSRMS/Mean(%) High Temp Peroid Low Temp Period Mip Const  The average is about 178 ADC counts / MIP using low temperature data Runs.  Calibrate the response of each strip using MIP signal and obtained the MIP constant at two different Temperatures  Distribution of MIP Calibration Constant for 2160 channels CALICE very preliminary

 After using Temperature Correction Factor, and Mip constant at extracted at low Temperature. Order of calibration constants are used. 1.Temperature Correction 2.Intercalibration correction 3.Saturation correction 4.MIP calibration (for low temperature & High Temperature Period) ScECAL Energy Response 1GeV 2GeV 4GeV 8GeV 12GeV 15GeV 20GeV 30GeV 32GeV

 For the points 12, 15, and 20 using the Mip constant values for higher Temperature. All runs are used.  For 1,2,4,8,30,32, Low Temperature Mip constant are used.  Temperature Correction also applied  For linearity, the points 12, 15, and 20 Show higher response.  taking the average of Mean for each energy point. 1. ScECAL Linearity& Resolution  Energy Resolution are obtained using the Weighted average Method. Energy Resolution (%) σ constant 2.14±0.27 σ stochastic 14.22±0.28

 For all the points 1,2,4,8,12, 15, 20,30,32 using the Mip constant values extracted at low Temperature.  Temperature Correction also applied  taking the average of Mean for each energy point.  Energy Resolution are obtained using the Weighted average Method. Energy Resolution (%) σ constant 2.14±0.27 σ stochastic 14.22± ScECAL Linearity & Energy Resolution Energy resolution are obtained after fitting :

 For all the points 1,2,4,8,12, 15, 20,30,32 using the Mip constant values extracted at High Temperature.  Temperature Correction also applied  taking the average of Mean for each energy point.  Energy Resolution are obtained using the Weighted average Method. 3. ScECAL Linearity & Energy Resolution Energy Resolution (%) σ constant 2.11±0.25 σ stochastic 14.24±0.25 Energy resolution are obtained after fitting :

Plan - Check for event Selection - study systematic uncertainty

Energy Resolution (%) σ constant 2.44 σ stochastic ScECAL Linearity & Resolution  Only one run for each point are used  For the points 12, 15, and 20 the Mip constant values for higher Temperature are used.  For 1,2,4,8,30,32, Low Temperature Mip constant are used.  No Temperature Correction applied