Difference between revisions of "Mattione BCAL Segmentation"
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== Procedure == | == Procedure == | ||
=== Determine Smearing === | === Determine Smearing === | ||
| − | * '''( | + | * '''(generate more from 8 - 38 degrees (photon running))''' Fit current BCAL time uncertainties for photons, pions, and protons: make sure they're similar to the uncertainties in David's studies. |
** If they are not: probably due to clustering algorithm(s): '''ASSUME''' that the % of the timing uncertainty improvement is independent of this difference. | ** If they are not: probably due to clustering algorithm(s): '''ASSUME''' that the % of the timing uncertainty improvement is independent of this difference. | ||
* '''(Waiting on results)''' Fit the BCAL time resolution improvement % from the table of David's results as a function of theta (separately for photons, pions, and protons). Energy-dependence comes from the coefficients. | * '''(Waiting on results)''' Fit the BCAL time resolution improvement % from the table of David's results as a function of theta (separately for photons, pions, and protons). Energy-dependence comes from the coefficients. | ||
| − | * '''( | + | * '''(generate more from 8 - 38 degrees (photon running))''' Separately generate single-track events of photons, pions, and protons with the BCAL time smearing disabled (generated at center of target: assume that this is what David did). |
* '''(Select)''' Determine time-smearing necessary to reach the improved time resolution, code smearing into BCAL shower reconstruction. | * '''(Select)''' Determine time-smearing necessary to reach the improved time resolution, code smearing into BCAL shower reconstruction. | ||
Revision as of 16:32, 18 October 2011
Contents
Procedure
Determine Smearing
- (generate more from 8 - 38 degrees (photon running)) Fit current BCAL time uncertainties for photons, pions, and protons: make sure they're similar to the uncertainties in David's studies.
- If they are not: probably due to clustering algorithm(s): ASSUME that the % of the timing uncertainty improvement is independent of this difference.
- (Waiting on results) Fit the BCAL time resolution improvement % from the table of David's results as a function of theta (separately for photons, pions, and protons). Energy-dependence comes from the coefficients.
- (generate more from 8 - 38 degrees (photon running)) Separately generate single-track events of photons, pions, and protons with the BCAL time smearing disabled (generated at center of target: assume that this is what David did).
- (Select) Determine time-smearing necessary to reach the improved time resolution, code smearing into BCAL shower reconstruction.
Physics Analysis
- Smear TOF & FCAL time resolutions to reach design value (during reconstruction since already generated!)
- Determine PID cuts for protons & pions (delta-beta vs p) for both smearing resolutions (use datasets generated earlier).
- (DONE) Generate b1pi events (all vertex z)
- Two analyses: one with BCAL time smearing disabled (smear during shower reconstruction), the other with default smearing.
- Run cooking code to reconstruct events.
- Perform b1pi analysis, using PID cuts (allow all hypotheses).
File Tracking
Job Files
Photons
Protons
- bcalsegmentation_protons/run_gluex_2011-10-12-005105_*: protons, all angles, no smearing
