Slide 17 of 24
Notes:
Caltech/HEP submitted a proposal to NPACI to generate ~1,000,000 fully-simulated multi-jet QCD events
Using CMSIM on the Exemplar
Directly study Higgs ? ?? backgrounds for first time
Computing power of Exemplar makes this possible in ~few months
Accepted in March ‘98.
Event production on the Exemplar since May 24th.
~0.6 TBytes of FZ files (~600,000 events) in HPSS
Used by GIOD as copious source of “raw” LHC event data
Files are read using the “ooZebra” utility developed in CMS
Raw data objects (tracker hit maps, ECAL energy maps) created for each event and stored in Objy federated database
Tracks and energy clusters reconstructed: new objects stored in the database
Pattern matching creates “physics” objects like Photons and Electrons: stored in the database
Events in the database are analysed using Java Analysis Studio and “scanned” using a Java applet
