Privacy and Security Notice
Privacy
and Security Notice
Cross
comparison between HMS and SOS acceptance.
1. Done on 6/24/03. SOS angle was
47.48 degrees and central momentum of 1.74 GeV/c . The HMS angle was
47.495 degrees with the HMS central momentum varied ( listed in Table
below) to cover the SOS delta acceptance. Trigger for HMS and SOS was
ELREAL.
Run
|
HMS central momentum
|
Target
|
46761
|
1.84
|
LH2
|
46762
|
1.84
|
thick dummy
|
46763
|
1.61
|
thick dummy
|
46764
|
1.61
|
LH2
|
46765
|
1.41
|
LH2
|
46766
|
1.41
|
thick dummy
|
2. Runs 46767 to 46775 were LH2 target runs done on 6/24/03 . SOS
angle was 69.96 degrees and central momentum was 0.740 GeV/c. The HMS
angle was 70.00 degrees and the central momentum was 0.8057 GeV/c. The
dummy target run was 46776.
3. Runs 46779 and 46780 were LH2 target runs done on
6/24/03 . SOS angle was 69.96
degrees and central momentum was 0.900 GeV/c. The HMS angle was 70.00
degrees and the central momentum was 0.8057 GeV/c. The dummy target run
was 46778.
4. Runs 46892,46907-8 were LH2 target runs with HMS angle of
69.99 and HMS momentum of 0.9156 GeV/c . The SOS is set for positrons
for these runs. The empty target runs are 46890-1 and 46893.