Privacy and Security Notice


Look at normalized yield for pass3

1. For first pass replay looked at normalized yield for each combination of high/low HMS momentum setting, top/bottom target cups, NH3/ND3 targets and parallel/perpendicular target field setting. First ran a tcl script which used the file /group/e01006/rss_replay_DBASE/allruns.txt
and produced files with the charge ( from the syncfilter.log files in mC ) and for the fiducial tracking efficiency ( from the stats*.txt files).

Used the kumac to extract the yield (with cuts: 0.8 < W < 2.0 , abs(hsdelta)< 8% and hsshtrk > 3.0)
and produced files with the normalized yield = yield/charge/(tracking eff)  and error.  The deadtime correction is not needed, since the scalers which determine the charge was ANDed with the TSLIVE signal. This meant the the charge is only for the recorded data.

In general, the normalized yields ( corrected by the fiducial tracking efficiency) are constant with a setting. Plots are included of the normalized yields ( corrected by lifetime and fiducial tracking efficiency) show bumps that are correlated with changes in the lifetime which demostrate that the data should NOT be corrected for the lifetime.

There are some isolated runs with significant deviations from the average. These runs are:



a)  Runs 43299-43305 . The HV for the some HMS scintillators was changed ( see logbook entry 46239 for list) during run 43299. During run 43301-2 more HV channels were changed (see logbook entry 46249) ). This was done to because there was not an equal number of hits for the opposite ends of the scintillator for some paddles ( see logbook entry 46242 ). The HV were set back to the original values during run 43305 ( see logbook entry 46263). All runs except 43300 are about 5% high compare to the average normalized yield which indicates that the scintillator trigger efficiency did improve for these runs.


b) Run 43611.

c) Run 44030.



2. Parallel target field. ( dat file is list of run number, counts, norm yield, err, charge (mC), correction factor)

Setting
Plot
Comment
ND3, top cup, HMS p cent=4.095
(dat file)        (ratio file)  
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Yields within +/- 1.5%

ND3, bottom cup, HMS p cent=4.095
 (dat file)     (ratio file)  
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Yields within +/- 0.5%
b) run 44030 problems ( removed from list)
NH3, top cup, HMS p cent=4.095
(dat file)      (ratio file)
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Yields within +/- 1.0%

NH3, bottom cup, HMS p cent=4.095
(dat file)     (ratio file) 
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Yields within +/- 1.0%
ND3, top cup, HMS p cent=4.723
(dat file)     (ratio file)    
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Majority of yields within +-1%
 
ND3, bottom cup, HMS p cent=4.723
 (dat file)     (ratio file) 
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a)Yields within +-2%

NH3, top cup, HMS p cent=4.723
(dat file)     (ratio file)
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Yields within +-1%

NH3, bottom cup, HMS p cent=4.723
(dat file)    (ratio file) 
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) 2% jump between groupings






3. Perpendicular target field.


Plot
Comment
ND3, top cup, HMS p cent=4.095
(dat file)    (ratio file) 
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number

a) 1% jump between groups

ND3, bottom cup, HMS p cent=4.095
(dat file)    (ratio file) 
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Yields within +/-1%

NH3, top cup, HMS p cent=4.095
(dat file)     (ratio file)
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Most yields within +/-1%

NH3, bottom cup, HMS p cent=4.095
(dat file)     (ratio file)  
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) yields within +/-1%

ND3, top cup, HMS p cent=4.723
 (dat file)     (ratio file)    
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Beginning five runs +3% compared to later runs.

ND3, bottom cup, HMS p cent=4.723
(dat file)      (ratio file)   
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Yields within +-2%
b) run 43611 7% off.

NH3, top cup, HMS p cent=4.723
(dat file)       (ratio file) 
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) runs 43303-5 +5% off.
b) rest within +/-1.5%
NH3, bottom cup, HMS p cent=4.723
 (dat file)        (ratio file)
Ratio of normalized yield not using lifetime to average

Lifetime and Fideff versus run number
a) Most within +/- 1.5%
b) runs 43299,43301-2 +5% off