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RESEARCH PRODUCT

An upgraded ATLAS central trigger for 2015 luminosities

Ruth Pottgen

subject

PhysicsParticle physicsLuminosity (scattering theory)Large Hadron ColliderCalorimeter (particle physics)Physics::Instrumentation and Detectorsbusiness.industryReadout electronicsmedicine.anatomical_structureUpgradeAtlas (anatomy)Nuclear electronicsmedicinePhysics::Accelerator PhysicsHigh Energy Physics::ExperimentbusinessComputer hardware

description

The Central Trigger Processor (CTP) is a core unit of the first of three levels that constitute the ATLAS trigger system. Based on information from calorimeter and muon trigger processors as well as from some additional systems it produces the level-1 trigger decision and prompts the read-out of the sub-detectors. The increase in luminosity at the LHC has pushed the CTP operation to its design limits. In order to still satisfy the physics goals of the experiment after the shutdown of the LHC of 2013/2014 the CTP will be upgraded during this period. This article discusses the current Central Trigger Processor, the motivation for the upgrade, and the changes foreseen to meet the requirements of the post-2014 physics runs at the LHC.

yearjournalcountryeditionlanguage
2013-06-012013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications (ANIMMA)
https://doi.org/10.1109/animma.2013.6728025