4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Performance of the CMS Level-1 Trigger

6 Jul 2012, 14:00
20m
Room 218 (Melbourne Convention and Exhibition Centre)

Room 218

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 13. Detectors and Computing for HEP Room 218 - Detectors and Computing for HEP - TR13

Speaker

Dr Jim Brooke (University of Bristol (UK))

Description

The first level trigger of the CMS experiment is comprised of custom electronics that process data from the calorimeters and muon detectors in order to select the most interesting events from LHC collisions. The rate of events selected by this Level-1 trigger must be reduced from the beam crossing frequency to no more than 100 kHz before detector digitization and High Level Trigger processing can occur. Here we report on the efficiencies, resolution, and trigger rates of the Level-1 trigger as measured from LHC proton collisions at 7 and 8 TeV center-of-mass energies. Example trigger menus used to select events for physics analysis by the CMS experiment also will be discussed.

Primary author

Dr Jim Brooke (University of Bristol (UK))

Presentation materials