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Performance of the ATLAS Trigger with Proton Collisions at the LHC
2011
Proceedings of 35th International Conference of High Energy Physics — PoS(ICHEP 2010)
unpublished
The ATLAS trigger has been used very successfully to collect collision data during 2009 and 2010 LHC running at centre-of-mass energies of 900 GeV, 2.36 TeV, and 7 TeV. The trigger system reduces the event rate, from the design bunch-crossing rate of 40 MHz, to an average recording rate of 200 Hz. The ATLAS trigger is composed of three levels. The first (L1) uses custom electronics to reject most background collisions, in less than 2.5 µs, using information from the calorimeter and muon
doi:10.22323/1.120.0001
fatcat:nuwmhu5e5fe6jnc36ide7grlnq