Babar/CM2 A-to-Z at Manchester

James Werner

Experimental data, Monte Carlo simulation and grid processing.

The image on top shows the experiment data events and the other shows Monte carlo simulation. Both were run at SLAC and Manchester with and without grid. There is not any difference between them. Difference in colors represent different numbers of events in Monte Carlo and in data. This representation introduces a very interesting effect. All files contains random events in the same relation (their cross sections still the same). When paw draws colour plots, it takes the biggest value and sets intervals for the same number of the colours. This is the same as plotting the ratio between the cross sections. Hence, all of the plots look the same - it does not matter what number of events is in it.

If there is a mistake, at least it is the same everywhere!

Quality assurance

QA procedure and database interaction
http://www.slac.stanford.edu/BFROOT/www/Computing/Distributed/Bookkeeping/meetings/workshops/feb2004/hutchcroft.pdf

PR QA Run4
http://www.slac.stanford.edu/BFROOT/www/Computing/Distributed/Bookkeeping/meetings/workshops/feb2004/jinwei.ppt

Skims QA
http://www.slac.stanford.edu/BFROOT/www/Computing/Distributed/Bookkeeping/meetings/workshops/feb2004/matt.pdf

Conversion QA
http://www.slac.stanford.edu/BFROOT/www/Computing/Distributed/Bookkeeping/meetings/workshops/feb2004/chiara.pdf