User name Nilanga
Log entry time 14:44:09 on October 8,1999
Entry number 27985
keyword=H Arm inefficiency checked
I analyzed runs 2163 (d90-143) 2139 (d90-127) and 2092 (d90-90) and generated histograms of e.beta and h.beta under collimator cuts (x.sieve<+/-7cm, y.sieve<=/-3.75 cm).
It seems that for all three runs the yield of good events in the H arm is the same within 1%. And for run 2092 where both spectrometers were at same settings, the e and h yields are same within 7%.
This indicates that there is no inefficiency in the H arm.