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FGT helix tracker - take 2
Conceptually the algo have not change since yesterday (http://drupal.star.bnl.gov/STAR/node/23842/) but few bug fixes and parameter adjustement made it ~3x more efficient and residua are smaller (too small)
INPUT events:
- real 2012 , pp200 : all FGT-minB events from runs 13066101,102,104, total of 51k events
- real 2012, pp510 : all 317k fgt-minB events from run 13079078
- M-C Pythia pp510 (other jobs crashed), 1k events
| octant | real data 51k events |
M-C 1k events |
| 0 | 396 | ? |
| 1 | 412 | ? |
| 2 | 508 | 145 |
| 3 | 568 | 135 |
Fig 1. run 13066101,102,104, 51k events, fitting to octant 3, attached files show more details for all 4 tried octants.
Fig 2. run 13079078 , 317k events, fit to octants 0-3 combined. Plots shows cross point of reco track passing all QA cuts fitted to any avaliable R or Phi cluster. Disc plot is incremented if at least on of the planes contributed to the fit.
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