1093746

Back to Bern Bricks or OPERA

General Informations

- Brick: b 097346
- Type: Muonless

- Person: Frank
- Mic: (2) 1
- light level: 29500
- cutoff 0: (top) 1200
- cutoff 1: (bot) 1100

- Event Viewer
- Analysis Follower of the OPERA Experiment

Loogbook

Start: 2008-08-18, 12:00

Extraction of Predictions from DB: done. OK. Reading Corner, creating mapfile: done. OK.

Manual Check of Predictions: done. NOT FOUND. (neither by Frank, nor by Frederic, nor by Ciro).

Started large area scan (2x2cm2) around point containing the two predictions. Up to plate 43.

Mark Problem: some optical marks printed twice. Plate cannot be used for scannning at all. This affects Plate 54,51,45. Mark Problem: Plate 53 was rotated by about 5degree, big alignment offset necessary. After this plate can be aligned.

See tracks passing the 12 scanned plates, but no good >2 prong vertices, and the 2prong vertices have all low probability (long track+a short track: may be accidentaly).

Shower search. done. NOT FOUND.

End: 2008-08-29, 12:20

Predictions

- cat p057/93746.57.1.100.man.pred.txt
- 2    81112.23    41054.65   0.0275  -0.2850 0
- 3    74205.43    41329.45  -0.2554  -0.2361 0

this is the position of the fifth mark with respect to the other 4.

(X,Y) = (96624, 24889)

This 5th X-ray mark has been confirmed by manual check.

Plots

- CS Predictions: Media:B093746_CSPredictions.png
- Volume Scan (2x2cm2) Tracking: Media:B093746VScanTracking.png