Conveners
Trigger
- Gregory Michiel Iles (Imperial College (GB))
Trigger
- Gregory Michiel Iles (Imperial College (GB))
Trigger
- Julie Whitmore (Fermi National Accelerator Lab. (US))
The increase of luminosity expected by LHC during Phase1 will impose several constrains for rate reduction while maintaining high efficiency in the CMS Level1 trigger system. The TwinMux system is the early layer of the muon barrel region that concentrates the information from different subdetectors: DT, RPC and HO. It arranges and fan-out the slow optical trigger links from the detector...
LHC is planned to run at high luminosity during Run 3 from 2021 through 2023. In order to improve the identification performance for electrons, photons, taus, jets, missing energy at high background rejection rates, a new trigger readout system is being designed to process the signals with higher spatial granularity. The LAr Trigger Digitizer Board (LTDB) that will process 320 Super Cells...
A new CMS Tracker is under development for the High Luminosity LHC from 2025. It includes an outer tracker based on "PT-modules" which will construct stubs, built by correlating clusters in two closely spaced sensors. Reconstruction of tracks from stubs is required if the tracker is to contribute to the Level1 trigger under increased luminosity. A concept for an FPGA-based track finder using a...
Pattern recognition associative memory (PRAM) devices are parallel processing engines which are used to tackle the complex combinatorics of track finding algorithms, particularly for silicon based tracking triggers. In the talk we present our latest PRAM-based pattern recognition mezzanine card design which supports both ASIC and FPGA based PRAMs, and describe how the PRAM interface and FPGA...
In Run 3, the ATLAS Level-1 Calorimeter Trigger will be augmented by an Electron Feature Extractor (eFEX), to identify isolated e/g and t particles, and a Jet Feature Extractor (jFEX), to identify energetic jets and calculate various local energy sums. Each module accommodates more than 420 differential signals that can operate at up to 12.8 Gb/s, some routed over 20 cm between FPGAs....
The NA62 experiment aims to measure rare kaon decays, in order to precisely test the standard model. The RICH detector of the experiment is instrumental in charged-particle identification and in measurement of their crossing time, with a resolution better than 100ps. Here we describe the design of the Level-0 trigger system for the RICH, which provides a precise time reference by counting the...
Modern High Energy Physics Trigger Systems require high data throughput on the Gigabyte scale and latencies in the range of a few microseconds.
Traditionally, those requirements could only be met by expensive, dedicated hardware like FPGAs and ASICs.
However, GPUs provide high-performance and pose an affordable and easily programmable alternative.
In this paper we evaluate modern GPGPUs as...
