User name R. Michaels
Log entry time 09:25:28 on May 2,2008
Entry number 236446
keyword=mini-sign-checkSince we recently changed the helicity circuit I was worried that
the timing might be off. I've been spot checking runs and observed
non-zero charge asymmetry A_Q, so I figured it was ok.
In this entry, with help from L. Mercado, I check versus HAPPEX.
For HAPPEX run 40879 the A_Q was +1209 +/- 170 ppm. For the
concurrent HRS run 4547 A_Q was +951 +/- 114 ppm in scalers.
They agree in sign and magnitude (I think Moller is opposite sign).
The HAPPEX error could be smaller, but this is just the RMS from
different monitors due to imprecise pedestal calibration.
Good enough for online check.
FIGURE 1
