Difference between revisions of "Mattione BCAL Segmentation"

Revision as of 01:43, 18 October 2011

(Genning/Plugining/Selecting pi+ & photon) 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.

(DONE) 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.

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).

bcalsegmentation_protons/run_gluex_2011-10-12-005105_*: protons, all angles, no smearing

@@ Line 1: / Line 1: @@
 == Procedure ==
 === Determine Smearing ===
-* '''(Selecting)''' Fit current BCAL time uncertainties for photons, pions, and protons: make sure they're similar to the uncertainties in David's studies.
+* '''(Genning/Plugining/Selecting pi+ & photon)''' 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.