Difference between revisions of "Experimental Setup"
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** Angle range: 7.1 to 20 degrees. | ** Angle range: 7.1 to 20 degrees. | ||
** Detectors: | ** Detectors: | ||
| − | ** Noble gas with standard gas (pion threshold | + | ** Noble gas with standard gas (pion threshold 7 GeV: 40% neon, 60% argon) |
** Heavy gas (1 atmosphere C4F10 (?) for pion threshold of 2.6 GeV) | ** Heavy gas (1 atmosphere C4F10 (?) for pion threshold of 2.6 GeV) | ||
** Aerogel with index 1.015 (kaon threshold 2.85 GeV). [https://hallcweb.jlab.org/elogs/R-SIDIS+Experiment/2 Elog entry] | ** Aerogel with index 1.015 (kaon threshold 2.85 GeV). [https://hallcweb.jlab.org/elogs/R-SIDIS+Experiment/2 Elog entry] | ||
Latest revision as of 16:13, 21 August 2024
- Beam.
- Energies 6.5 GeV (17 PAC days), 8.6 GeV(15 PAC days), and 10.7 GeV (15 PAC days).
- Beam pipe size: Medium.
- Polarized for 3 and 5 pass.
- HMS
- Standard configuration for electrons/positrons.
- Momentum range: 1.5 to 5.3 GeV.
- Angle range: 13.5 to 49 degrees.
- SHMS.
- Momentum range: 1.6 to 6 GeV.
- Angle range: 7.1 to 20 degrees.
- Detectors:
- Noble gas with standard gas (pion threshold 7 GeV: 40% neon, 60% argon)
- Heavy gas (1 atmosphere C4F10 (?) for pion threshold of 2.6 GeV)
- Aerogel with index 1.015 (kaon threshold 2.85 GeV). Elog entry
- standard scintillators, drift chambers, and calorimeter.
- Triggers
- Coincidence of HMS 3/4 and SHMS 3/4
- Coincidence of HMS EL_REAL and SHMS 3/4
- HMS 3/4 (SHMS read out even if no trigger)
- HMS EL_real (ditto)
- HMS EL_real only (no SHMS readout)
- HMS 3/4 only (no SHMS readout)
- SHMS 3/4 (for cosmics)
