View source for GMn/nTPE analysis meeting 2023 06 16

[https://sbs.jlab.org/wiki/index.php/SBS_Software/GMN_analysis_meeting_agendas_and_minutes Back to main analysis meeting page]

[https://sbs.jlab.org/wiki/index.php/GMn/nTPE_analysis_meeting_2023_06_09 Previous meeting] [https://sbs.jlab.org/wiki/index.php/GMn/nTPE_analysis_meeting_2023_06_23 next meeting]

'''Agenda:'''

* Calibrations for pass 2 -
* Questions about \theta_{pq} cuts [https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=404] - Anu
* AOB


'''Minutes:'''

* HCal: 
** summary of calibration status [https://sbs.jlab.org/wiki/images/5/5a/HCal_Calibration_Quality_Check_GMn_SBS4_for_Pass2.pdf 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 [https://sbs.jlab.org/wiki/images/3/33/Hodo_bbcal_time_corr.png] [https://sbs.jlab.org/wiki/images/a/ab/Hodo_bbcal_time_diff.png];