E12-09-017 Run Plan
E12-09-017 Run Plan
Goal of the experiment is to measure the pt-dependence of SIDIS from proton, deuteron, and aluminum targets, for final state pi+, pi-, K+, and K-. The goal is to measure absolute cross sections with particular attention to achieving small errors on the ratios of cross sections for different final states and targets. The beam single-spin asymmetry will also be measured at the settings with sufficient phi coverage.
Beam energy: 10.6 GeV
HMS spectrometer will be detecting electrons.
SHMS Spectrometer will run both positive and negative pi/K
Trigger: main trigger is 3/4 Hodo in HMS in coincidence with 3/4 Hodo in SHMS (same as for CT experiment). We will also trigger on HMS singles with a pre-scle factor. We will also have some EDT triggers.
Beam current: For most settings we can hopefully take 55 to 60 muA beam current. At SHMS forward angles, we will have to run at lower currents in order to keep the DC rates below 500 KHz and the real/accidentals ratio less than 1 to 1.
Targets: LH2, LD2, dummy
Run time: Except for the low current runs, the goal is to collect about 150 mC of charge for each of LH2 and LD2, using three runs lasting about 20 minutes each. It is acceptable to be within 20% of the goal (so anywhere from 120 to 180 mC is ok for the nominal 150 mC runs). For the lower current runs, the goal is 150 mC times square root of the cuurent used divided by 40 muA. So for 10 muA, the goal is 300 mC.
The dummy runs should be for half the length of each of the liquid target runs (so about 75 mC in except for the low current runs).
Kinematic points (in order, except as end of run approaches, try to make sure each point has both positive and negative SHMS polarity).
set SHMS to positive polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current Run Charge 5.3 13.5 0.31 3.10 12.0 5.05 0.90 -0.06 1.16 40.0 5.3 13.5 0.31 3.10 12.0 3.37 0.60 -0.04 3.35 40.0 5.3 13.5 0.31 3.10 8.0 2.53 0.45 -0.21 4.35 13.5 5.3 13.5 0.31 3.10 10.0 2.53 0.45 -0.12 4.41 22.8 5.3 13.5 0.31 3.10 12.0 2.53 0.45 -0.03 4.44 39.6 5.3 13.5 0.31 3.10 14.0 2.53 0.45 0.06 4.44 40.0 5.3 13.5 0.31 3.10 16.0 2.53 0.45 0.15 4.40 40.0 5.3 13.5 0.31 3.10 18.0 2.53 0.45 0.23 4.32 40.0 5.3 13.5 0.31 3.10 20.0 2.53 0.45 0.32 4.21 40.0 5.3 13.5 0.31 3.10 22.0 2.53 0.45 0.41 4.07 40.0 5.3 13.5 0.31 3.10 24.0 2.53 0.45 0.50 3.89 40.0 5.3 13.5 0.31 3.10 26.0 2.53 0.45 0.58 3.68 40.0
Switch SHMS to negative polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current 5.3 13.5 0.31 3.10 12.0 5.05 0.90 -0.06 1.16 40.0 5.3 13.5 0.31 3.10 12.0 3.37 0.60 -0.04 3.35 40.0 5.3 13.5 0.31 3.10 8.0 2.53 0.45 -0.21 4.35 13.5 5.3 13.5 0.31 3.10 10.0 2.53 0.45 -0.12 4.41 22.8 5.3 13.5 0.31 3.10 12.0 2.53 0.45 -0.03 4.44 39.6 5.3 13.5 0.31 3.10 14.0 2.53 0.45 0.06 4.44 40.0 5.3 13.5 0.31 3.10 16.0 2.53 0.45 0.15 4.40 40.0 5.3 13.5 0.31 3.10 18.0 2.53 0.45 0.23 4.32 40.0 5.3 13.5 0.31 3.10 20.0 2.53 0.45 0.32 4.21 40.0 5.3 13.5 0.31 3.10 22.0 2.53 0.45 0.41 4.07 40.0 5.3 13.5 0.31 3.10 24.0 2.53 0.45 0.50 3.89 40.0 5.3 13.5 0.31 3.10 26.0 2.53 0.45 0.58 3.68 40.0
Lower SHMS momentum: keep negative polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current 5.3 13.5 0.31 3.10 8.0 1.96 0.35 -0.16 5.09 10.1 5.3 13.5 0.31 3.10 10.0 1.96 0.35 -0.09 5.14 15.0 5.3 13.5 0.31 3.10 12.0 1.96 0.35 -0.02 5.16 22.8 5.3 13.5 0.31 3.10 14.0 1.96 0.35 0.04 5.16 35.2 5.3 13.5 0.31 3.10 16.0 1.96 0.35 0.11 5.13 40.0 5.3 13.5 0.31 3.10 18.0 1.96 0.35 0.18 5.07 40.0 5.3 13.5 0.31 3.10 20.0 1.96 0.35 0.25 4.98 40.0 5.3 13.5 0.31 3.10 22.0 1.96 0.35 0.32 4.87 40.0 5.3 13.5 0.31 3.10 24.0 1.96 0.35 0.39 4.74 40.0 5.3 13.5 0.31 3.10 26.0 1.96 0.35 0.45 4.57 40.0 5.3 13.5 0.31 3.10 28.0 1.96 0.35 0.52 4.38 40.0 5.3 13.5 0.31 3.10 30.0 1.96 0.35 0.58 4.17 40.0
Switch SHMS to positive polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current 5.3 13.5 0.31 3.10 8.0 1.96 0.35 -0.16 5.09 10.1 5.3 13.5 0.31 3.10 10.0 1.96 0.35 -0.09 5.14 15.0 5.3 13.5 0.31 3.10 12.0 1.96 0.35 -0.02 5.16 22.8 5.3 13.5 0.31 3.10 14.0 1.96 0.35 0.04 5.16 35.2 5.3 13.5 0.31 3.10 16.0 1.96 0.35 0.11 5.13 40.0 5.3 13.5 0.31 3.10 18.0 1.96 0.35 0.18 5.07 40.0 5.3 13.5 0.31 3.10 20.0 1.96 0.35 0.25 4.98 40.0 5.3 13.5 0.31 3.10 22.0 1.96 0.35 0.32 4.87 40.0 5.3 13.5 0.31 3.10 24.0 1.96 0.35 0.39 4.74 40.0 5.3 13.5 0.31 3.10 26.0 1.96 0.35 0.45 4.57 40.0 5.3 13.5 0.31 3.10 28.0 1.96 0.35 0.52 4.38 40.0 5.3 13.5 0.31 3.10 30.0 1.96 0.35 0.58 4.17 40.0
ange HMS momentum to 5.9 GeV, keep SHMS positive polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current 5.9 13.5 0.40 3.50 16.0 4.52 0.90 -0.01 0.91 40.0 5.9 13.5 0.40 3.50 16.0 3.01 0.60 -0.00 2.63 40.0 5.9 13.5 0.40 3.50 8.0 2.41 0.48 -0.34 3.08 12.6 5.9 13.5 0.40 3.50 10.0 2.41 0.48 -0.25 3.19 20.8 5.9 13.5 0.40 3.50 12.0 2.41 0.48 -0.17 3.26 35.1 5.9 13.5 0.40 3.50 14.0 2.41 0.48 -0.09 3.31 40.0 5.9 13.5 0.40 3.50 16.0 2.41 0.48 -0.00 3.32 40.0 5.9 13.5 0.40 3.50 18.0 2.41 0.48 0.08 3.31 40.0 5.9 13.5 0.40 3.50 20.0 2.41 0.48 0.17 3.26 40.0 5.9 13.5 0.40 3.50 22.0 2.41 0.48 0.25 3.19 40.0 5.9 13.5 0.40 3.50 24.0 2.41 0.48 0.33 3.09 40.0 5.9 13.5 0.40 3.50 26.0 2.41 0.48 0.42 2.96 40.0 5.9 13.5 0.40 3.50 28.0 2.41 0.48 0.50 2.80 40.0 5.9 13.5 0.40 3.50 30.0 2.41 0.48 0.58 2.61 40.0
Switch SHMS to negative polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current 5.9 13.5 0.40 3.50 16.0 4.52 0.90 -0.01 0.91 40.0 5.9 13.5 0.40 3.50 16.0 3.01 0.60 -0.00 2.63 40.0 5.9 13.5 0.40 3.50 8.0 2.41 0.48 -0.34 3.08 12.6 5.9 13.5 0.40 3.50 10.0 2.41 0.48 -0.25 3.19 20.8 5.9 13.5 0.40 3.50 12.0 2.41 0.48 -0.17 3.26 35.1 5.9 13.5 0.40 3.50 14.0 2.41 0.48 -0.09 3.31 40.0 5.9 13.5 0.40 3.50 16.0 2.41 0.48 -0.00 3.32 40.0 5.9 13.5 0.40 3.50 18.0 2.41 0.48 0.08 3.31 40.0 5.9 13.5 0.40 3.50 20.0 2.41 0.48 0.17 3.26 40.0 5.9 13.5 0.40 3.50 22.0 2.41 0.48 0.25 3.19 40.0 5.9 13.5 0.40 3.50 24.0 2.41 0.48 0.33 3.09 40.0 5.9 13.5 0.40 3.50 26.0 2.41 0.48 0.42 2.96 40.0 5.9 13.5 0.40 3.50 28.0 2.41 0.48 0.50 2.80 40.0 5.9 13.5 0.40 3.50 30.0 2.41 0.48 0.58 2.61 40.0
Lower SHMS momentum: keep negative polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current 5.9 13.5 0.40 3.50 8.0 2.01 0.40 -0.28 3.58 10.3 5.9 13.5 0.40 3.50 10.0 2.01 0.40 -0.21 3.66 15.5 5.9 13.5 0.40 3.50 12.0 2.01 0.40 -0.14 3.72 23.7 5.9 13.5 0.40 3.50 14.0 2.01 0.40 -0.07 3.76 37.1 5.9 13.5 0.40 3.50 16.0 2.01 0.40 -0.00 3.78 40.0 5.9 13.5 0.40 3.50 18.0 2.01 0.40 0.07 3.76 40.0 5.9 13.5 0.40 3.50 20.0 2.01 0.40 0.14 3.73 40.0 5.9 13.5 0.40 3.50 22.0 2.01 0.40 0.21 3.67 40.0 5.9 13.5 0.40 3.50 24.0 2.01 0.40 0.28 3.58 40.0 5.9 13.5 0.40 3.50 26.0 2.01 0.40 0.35 3.47 40.0 5.9 13.5 0.40 3.50 28.0 2.01 0.40 0.42 3.34 40.0 5.9 13.5 0.40 3.50 30.0 2.01 0.40 0.48 3.18 40.0 5.9 13.5 0.40 3.50 32.0 2.01 0.40 0.55 3.00 40.0
Switch SHMS to positive polarity
P_HMS TH_HMS x Q2 TH_SHMS P_SHMS z p_t W'2 current 5.9 13.5 0.40 3.50 8.0 2.01 0.40 -0.28 3.58 10.3 5.9 13.5 0.40 3.50 10.0 2.01 0.40 -0.21 3.66 15.5 5.9 13.5 0.40 3.50 12.0 2.01 0.40 -0.14 3.72 23.7 5.9 13.5 0.40 3.50 14.0 2.01 0.40 -0.07 3.76 37.1 5.9 13.5 0.40 3.50 16.0 2.01 0.40 -0.00 3.78 40.0 5.9 13.5 0.40 3.50 18.0 2.01 0.40 0.07 3.76 40.0 5.9 13.5 0.40 3.50 20.0 2.01 0.40 0.14 3.73 40.0 5.9 13.5 0.40 3.50 22.0 2.01 0.40 0.21 3.67 40.0 5.9 13.5 0.40 3.50 24.0 2.01 0.40 0.28 3.58 40.0 5.9 13.5 0.40 3.50 26.0 2.01 0.40 0.35 3.47 40.0 5.9 13.5 0.40 3.50 28.0 2.01 0.40 0.42 3.34 40.0 5.9 13.5 0.40 3.50 30.0 2.01 0.40 0.48 3.18 40.0 5.9 13.5 0.40 3.50 32.0 2.01 0.40 0.55 3.00 40.0
