Results from the run 44788

1. General Information

The overall information for this run can be found here.

2. OCDB files

The OCDB files that were used for the reconstruction of this run were produced by the SSD DA during the pedestal run with the number 44775. The plots below show the map of the bad channels:

The gain calibration file used was not the proper one, since what was used was the default one from SVN. This affects the cluster charge ratio distributions (see below).

3. Analysis of clusters

Here are some histograms obtained with the official offline QA for the SSD clusters. In all plots we see the accumulated statistics from all the events of this run. There was a selection on the golden clusters.

Number of clusters per event per layer

Module number with clusters

Local coordinates x-y-z

Global coordinates x-y-z

Cluster type - Charge ratio - Cluster charge

Cluster charge (P-Side) - Cluster charge (N-Side) - qN/qP

Cluster charge map - Cluster charge correlation

4. Visualization

For the reconstruction of these data, we used v4-13-Release and the official AliEn OCDB entries.

Event 50 - xy	Event 50 - yz

5. Global QA

Below you can find the residuals for both SSD layers calculated within the Global QA. The results in the statistics' box come from a Gaussian fit which is not drawn.

Residuals: Layer 5

Residuals: Layer 6

-- PanosChristakoglou - 13 Jul 2008