Gatti Modeling of Charge Distribution Data from ME1/1 HV Run 3.1 kV S. Durkin Early Time Bin 0.45 cm < Strip Width < 0.45 cm t < -50 nsec before peak time q(0)/(q(-1)+q(0)+q(1)) Black – nominal gatti parameters nominal cross talk Blue – increase xtalk 6% for all time bins Red – multiply gatti h parameter by 1.5 Gatti Fit Position (strips)

0.45 cm < Strip Width < 0.45 cm t > 50 nsec after peak time Late Time Bin 0.45 cm < Strip Width < 0.45 cm t > 50 nsec after peak time Black – nominal Gatti parameters nominal cross talk Blue – increase xtalk 6% for all time bins Red – multiply Gatti h parameter by 1.5 q(0)/(q(-1)+q(0)+q(1)) Gatti Fit Position (strips)

Multiplying Gatti h by 1.25 fits the ME1/1 Data Well Early and Late Time Bins 0.45 cm < Strip Width < 0.45 cm t > 50 nsec after peak time Multiplying Gatti h by 1.25 fits the ME1/1 Data Well q(0)/(q(-1)+q(0)+q(1)) Gatti Fit Position (strips)