Pion Electroproduction Status

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Update the current values with the ones actually used, for summary points and commissioning entries, enter a Logbook entry as a comment where appropriate.

Pion Electroproduction Physics Status at Ebeam = 2.758 GeV

Ebeam Item Current Status Comment
2.758 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=9.70 (Left-2) 70 uA DONE Total Pions 25275/23k (109%), Log Entry
2.758 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=7.70 (Left-1) 58 uA DONE Total Pions 26376/23k (114%), Log Entry
2.758 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=5.70 (Centre) 48 uA DONE Total Pions 23070/23k (100% ), Log Entry
2.758 GeV Q2=0.375 W=2.2 x=0.0865 TOTAL DONE
2.758 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=5.70 (Centre) 54 uA DONE Total Pions 19009/23k (83%), Log Entry
2.758 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=7.75 (Left-1) 64 uA DONE Total Pions 23218/23k (100%), Log Entry
2.758 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=9.75 (Left-2) 70 uA DONE Total Pions 27059/23k (117%), Log Entry
2.758 GeV Q2=0.425 W=2.2 x=0.0969 TOTAL DONE No dummy target data for centre setting

Pion Electroproduction Commissioning Status at Ebeam = 2.758 GeV

Ebeam Item Status Comment
2.758 GeV Beam Energy Arc Measurement DONE Log Entry Follow-up Entry Try #2 C Elastics
2.758 GeV Golden HMS/SHMS sieve run DONE Log Entry
2.758 GeV LH2 LumiScan DONE 20uA highest current point Log Entry
2.758 GeV Carbon LumiScan DONE Log Entry
2.758 GeV Heep Singles DONE 8482-8491, 8557-8567
2.758 GeV Heep Coin DONE 8548-8551

Pion Electroproduction Physics Status at Ebeam = 3.660 GeV

Ebeam Item Current Status Comment
3.660 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=5.75 (Right-2) 20 uA DONE Total Pions 160381/220k (72%), Log entry
3.660 GeV Q2=0.375 W=2.2 x=0.0868 θ_SHMS=6.87 (Right-1) 15 uA DONE Total Pions 153324/220k (69%), Log entry
3.660 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=8.87 (Centre) 20 uA DONE Total Pions 189157/220k (85%), Log entry
3.660 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=10.87 (Left-1) 10 uA DONE Total Pions 195220/220k (88%), Log entry
3.660 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=12.87 (Left-2) 15 uA DONE Total Pions 199332/220k (90%), Log entry
3.660 GeV Q2=0.375 W=2.2 x=0.0865 TOTAL DONE
3.660 GeV Q2=1.45 W=2.2 x=0.3118 θ_SHMS=11.76 (Right) 70 uA DONE Total Pions 25980/36k (72%), Log entry
3.660 GeV Q2=1.45 W=2.2 x=0.3118 θ_SHMS=13.76 (Centre) 25 uA DONE Total Pions 31823/36k (88%), Log entry
3.660 GeV Q2=1.45 W=2.2 x=0.3118 θ_SHMS=15.76 (Left) Various DONE Total Pions 31472/36k (87%), Log entry
3.660 GeV Q2=1.45 W=2.2 x=0.3118 TOTAL DONE
3.660 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=7.20 (Right) 23 uA SKIPPED Setting skipped due to time constraints
3.660 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=9.20 (Centre) 40-50 uA DONE Total Pions 235962/220k (107%), Log entry
3.660 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=11.20 (Left-1) 50 uA DONE Total Pions 176470/220k (80%), Log entry
3.660 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=13.20 (Left-2) 50-70 uA DONE Total Pions 78459/220k (35%), Log entry
3.660 GeV Q2=0.425 W=2.2 x=0.0969 TOTAL DONE θ_SHMS=7.20 (Right) setting skipped

Pion Electroproduction Commissioning Status at Ebeam = 3.660 GeV

Ebeam Item Status Comment
3.660 GeV Beam Energy Arc Measurement DONE Log Entry
3.660 GeV Heep Coin DONE Log Entry

Pion Electroproduction Physics Status at Ebeam = 4.562 GeV

Ebeam Item Current Status Comment
4.562 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=7.64 (Right) 13 uA DONE Total Pions 258445/390k (66%), Log entry
4.562 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=10.33 (centre) 20 uA DONE Total Pions 508095/390k (130%), Log entry
4.562 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=12.33 (Left-1) 19 uA DONE Total Pions 376969/390k (96%), Log entry
4.562 GeV Q2=0.375 W=2.2 x=0.0865 θ_SHMS=14.33 (Left-2) 25 uA DONE Total Pions 287572/390k (73%), Log entry
4.562 GeV Q2=0.375 W=2.2 x=0.0865 TOTAL DONE
4.562 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=6.86 (Right-2) 17 uA DONE Total Pions 286819/390k (73%), Log entry
4.562 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=8.08 (Right-1) 20 uA DONE Total Pions 315453/390k (80%), Log entry
4.562 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=10.08 (Centre) 20 uA DONE Total Pions 293650/390k (75%), Log entry
4.562 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=12.08 (Left-1) 24 uA DONE Total Pions 293366/390k (75%), Log entry
4.562 GeV Q2=0.425 W=2.2 x=0.0969 θ_SHMS=14.08 (Left-2) 25 uA DONE Total Pions 297152/390k (76%), Log entry
4.562 GeV Q2=0.425 W=2.2 x=0.0969 TOTAL DONE
4.562 GeV Q2=2.12 W=2.2 x=0.3896 θ_SHMS=13.14 (Right) 70 uA DONE Total Pions 40735/35k (116%), Log entry
4.562 GeV Q2=2.12 W=2.2 x=0.3896 θ_SHMS=15.14 (Centre) 70 uA DONE Total Pions 42891/35k (122%), Log entry
4.562 GeV Q2=2.12 W=2.2 x=0.3896 θ_SHMS=17.14 (Left) 70 uA DONE Total Pions 38846/35k (110%), Log entry
4.562 GeV Q2=2.12 W=2.2 x=0.3896 TOTAL DONE

Pion Electroproduction Commissioning Status at Ebeam = 4.562 GeV

Ebeam Item Status Comment
4.562 GeV Beam Energy Arc Measurement DONE Log Entry, Completed during VCS
4.562 GeV Heep Coin DONE 8776, 8777 & 8778