Difference between revisions of "2018 Data - Analysis Page"
From Xem2
Jump to navigationJump to search| Line 2: | Line 2: | ||
===Target Information=== | ===Target Information=== | ||
* [https://wiki.jlab.org/xem2wiki/images/7/75/TGT-RPT-18-001.pdf Target configuration report] | * [https://wiki.jlab.org/xem2wiki/images/7/75/TGT-RPT-18-001.pdf Target configuration report] | ||
| + | * Target survey | ||
** Note: cryotargets need to subtract window thickness and apply a correction of 0.996 due to length contraction at low temperature | ** Note: cryotargets need to subtract window thickness and apply a correction of 0.996 due to length contraction at low temperature | ||
* [https://wiki.jlab.org/xem2wiki/images/5/5f/Solid-tgt-thick-notes.pdf Solid target notes] | * [https://wiki.jlab.org/xem2wiki/images/5/5f/Solid-tgt-thick-notes.pdf Solid target notes] | ||
| Line 13: | Line 14: | ||
*** z-target offset = 0.212 cm (carbon target) | *** z-target offset = 0.212 cm (carbon target) | ||
* How I get Boron from B4C: [https://wiki.jlab.org/xem2wiki/images/4/4c/Boron_yield_and_subtraction.pdf] | * How I get Boron from B4C: [https://wiki.jlab.org/xem2wiki/images/4/4c/Boron_yield_and_subtraction.pdf] | ||
| + | |||
===BCM calibration=== | ===BCM calibration=== | ||
* Summary from Deb | * Summary from Deb | ||
Revision as of 10:37, 2 February 2021
2018 Data: Analysis Summary
Target Information
- Target configuration report
- Target survey
- Note: cryotargets need to subtract window thickness and apply a correction of 0.996 due to length contraction at low temperature
- Solid target notes
- Note: I think there was a transcription error for the carbon target. The report says 0.5244 g/cm2. I get 0.5224 g/cm2 from the notes above.
- Beam and target offsets:
- Analysis of SHMS/HMS C data (log entry needed)
- Offsets to put in MC (from email from Abishek)
- x-spec offset = +0.127 cm
- y-spec offset = -0.057 cm
- x-beam offset = (0.073 - x-bpm) cm
- z-target offset = 0.212 cm (carbon target)
- How I get Boron from B4C: [1]
BCM calibration
- Summary from Deb
- Correction for runs 2557-2563 (multiply charge by 1.0115) XEM2 elog 60
Efficiencies and corrections
- Target Boiling
- LH2 target:
- LD2 target:
- SHMS
- NGC efficiency lookup table: F2 elog 317
- Calorimeter efficiency: F2 elog 287 (can't find log entry with polynomial form)
- Trigger efficiency
- Electronic dead time
- FADC dead time (100 ns)???
- HMS
- Cerenkov efficiency
- Calorimeter efficiency
- Trigger efficiency
- Electronic dead time
- FADC dead time (100 ns)???
- EMC only
- Isoscalar corrections
