run10164060

 Run 10164060 (6/13)

 

The first 500,000 events from this run are analyzed. Configuration was "production2009_200Gev_Single / Physics"

The clusters are generated from Qtdata. These clusters differ from the "appended/internal" L1 DSM input clusters in two aspects. 1. Qt8 sums are NOT truncated. 2. The perimeter high towers are ignored according to Eleanor's table. 

Total of 40 clusters, one for each Qt32 board, are compared to the threshold.

LED suppression is done by looking at the number of channels with ADC>10, and cutting at 800.


Number of trigger breakdown per module based on software-appended L1 input.

North Large: Total 45086 triggers, top 5 cells produced 24% of the NL triggers.

South Large: Total 60196 triggers, top 5 cells produced 16% of the SL triggers. 

North Small: Total 15373 triggers, top 5 cells produced 43% of the NS triggers.

South Small: Total 29900 triggers, top 5 cells produced 42% of the SS triggers.

Overall, 69.9% of the trigger came from large cells.

 

For the following plots, the origin is South Up.

 

 

 

 

 

Cluster sum distribution. (after low 5 bit suppression)

 

Trigger multiplicity

 

Pseudo Rapidity vs. Number of Triggers 

 

 

Attached spreadsheets show number of triggers, pseudo-rapidity, and phi for each cell. There is one for Qtdata based triggers, and another for L1 based triggers.