Difference between revisions of "E12-09-017 Run Plan"
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| + | 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 | Beam energy: 10.6 GeV | ||
| + | |||
HMS spectrometer will be detecting electrons. | HMS spectrometer will be detecting electrons. | ||
| + | |||
SHMS Spectrometer will run both positive and negative pi/K | SHMS Spectrometer will run both positive and negative pi/K | ||
Trigger: main trigger is Electron_lo in HMS in coincidence | Trigger: main trigger is Electron_lo in HMS in coincidence | ||
Revision as of 16:37, 9 April 2018
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 Electron_lo in HMS in coincidence
with 3/4 scintillator in SHMS, with a time window adjusted as short as possible without loosing efficiency. Should also have HMS Electron_lo single arm trigger, SHMS Electron_lo and 3/4 scin. single arm triggers with prescale factors that give small (<100 Hz) rates
Beam current: between 10 and 40 microamps. keep real/accidentals 1:1
or better on the LD2 target if possible, and singles rates in SHMS below 500 KHz. Best guess starting values are in the table below.
Targets: LH2, LD2, dummy Run time: Collect 140 mC of charge for each of LH2 and LD2, to first order, ~1 hour good quality beam for each cryo target, and 30 minutes for dummy for each kinematic point
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
