Difference between revisions of "GMn/nTPE analysis meeting 2023 05 05"
From SBS wiki
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'''Agenda:''' topics of discussion: | '''Agenda:''' topics of discussion: | ||
* Broader analysis roadmap/direction - Zeke has a starting point [https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=378 Diagram] | * Broader analysis roadmap/direction - Zeke has a starting point [https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=378 Diagram] | ||
| − | * Systematics & Statistics | + | * Systematics & Statistics: Sources of systematics: |
| − | + | ** detector efficiencies (most notably HCal) | |
| − | * What are necessary milestones for a preliminary result. | + | ** inelastic events subtraction; |
| + | ** kinematics - compare average effective Q2 for SBS8 and SBS9 (specific to nTPE); | ||
| + | * What are necessary milestones for a preliminary result [https://sbs.jlab.org/wiki/images/3/35/NTPE_analysis_plan.pdf List of steps/milestones towards analysis] | ||
'''Minutes:''' | '''Minutes:''' | ||
| + | * Analysis roadmap needs to include the evaluation of systematic uncertainties; | ||
| + | ** side question on radiative corrections: Evaluating their effect requires the comparison of an analysis on Monte Carlo with radiative corrections and without radiative corrections. | ||
| + | * Systematics: Will complete the list of systematics uncertainties. | ||
| + | ** Side discussion on HCal selection: need to evaluate systematics due to the selection of the highest energy cluster for the nucleon candidate; | ||
| + | * Milestones for preliminary results need to be completed and expended. | ||
| + | ** I will contact people to obtain an assessment on the calibration of the different subsystems for the next 2-3 meetings; | ||
| + | * Question on the attempt to analyze p(\gamma pi^+)pi N from SBS9 (brought by Anu): | ||
| + | ** we have to assume E(\gamma) = E(beam); | ||
| + | ** ideally we want only a neutron: will tBB resolution allow us to resolve n from pi N? | ||
| + | * Question on the relevance of getting dedicated p(\gamma pi^+)pi N data for GEn-RP: would need investigation. | ||
Latest revision as of 09:33, 5 May 2023
Back to main analysis meeting page
Agenda: topics of discussion:
- Broader analysis roadmap/direction - Zeke has a starting point Diagram
- Systematics & Statistics: Sources of systematics:
- detector efficiencies (most notably HCal)
- inelastic events subtraction;
- kinematics - compare average effective Q2 for SBS8 and SBS9 (specific to nTPE);
- What are necessary milestones for a preliminary result List of steps/milestones towards analysis
Minutes:
- Analysis roadmap needs to include the evaluation of systematic uncertainties;
- side question on radiative corrections: Evaluating their effect requires the comparison of an analysis on Monte Carlo with radiative corrections and without radiative corrections.
- Systematics: Will complete the list of systematics uncertainties.
- Side discussion on HCal selection: need to evaluate systematics due to the selection of the highest energy cluster for the nucleon candidate;
- Milestones for preliminary results need to be completed and expended.
- I will contact people to obtain an assessment on the calibration of the different subsystems for the next 2-3 meetings;
- Question on the attempt to analyze p(\gamma pi^+)pi N from SBS9 (brought by Anu):
- we have to assume E(\gamma) = E(beam);
- ideally we want only a neutron: will tBB resolution allow us to resolve n from pi N?
- Question on the relevance of getting dedicated p(\gamma pi^+)pi N data for GEn-RP: would need investigation.
