GMn/nTPE analysis meeting 2023 06 16

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Agenda:

• Calibrations for pass 2 -
• Questions about \theta_{pq} cuts [1] - Anu
• AOB

Minutes:

• HCal:
  • summary of calibration status HCal SBS4 for pass2, *preliminary*: Good progress, need to double check the nature of the MC spectra (raw MC energy deposit? smeared with p.e. statistics? digitized?);
  • Developed another method to estimate the efficiency, applying an anticut on the HCal dx variable: agrees with other estimations
• Questions on selection of elastics on theta_pq on SBS4 30%: theta_pq can still be employed to separate protons and neutrons (equivalent to elliptical cut on HCal dx/dy); at this setting the n/p misidentification will be larger
• Difference between hodoscope time and BB time suggests that we see the 4ns beam structure [2] [3];