1 Calorimetry Study Update — Dependence of energy and phi Jaewon Park University of Rochester MINERvA/Jupiter Group Meeting, Apr 19, 2006

2 Phi dependence - effective theta correction Theta = 50deg Phi, modified theta  0, 50  10,  20,  30, Solve for theta numerically Last time I miscalculated effective theta!

3 Phi dependence - effective theta correction Proton K.E = 2.2GeV There seem to slight leakage in the region of phi=20-30deg Usually bigger calibration correction means bigger RMS We can make leakage correction near phi=30 if necessary

4 Beam energy dependence with kinematic cut Fit with Fit with only new data seta

5 Angle dependence with kinematic cut Proton K.E = 2.2GeV New geom resolution decreased ~ 5% New geom, cut efficiency  40 deg – 93%  50 deg – 83%  60 deg – 76%  70 deg – 70%  80 deg – 68%

6 With eCal, Proton K.E=3GeV, theta=50