A3b - Trigger
- Emilio Petrolo (Universita e INFN, Roma I (IT))
Dr Pamela Klabbers (University of Wisconsin)
9/28/11, 11:00 AM
We present a design for the Phase-1 upgrade of the CMS calorimeter trigger system composed of FPGAs and Multi-GBit/sec links that adhere to the micro-TCA crate Telecom standard. The upgrade calorimeter trigger will implement algorithms that create collections of isolated and non-isolated electromagnetic objects, isolated and non-isolated tau objects and jet objects. The algorithms are...
45. Upgrade of the ATLAS Level-1 Muon Trigger for High Luminosities Using the Precision Muon Drft Tube Chambers
Dr Hubert Kroha (Max-Planck-Institut fuer Physik, Munich)
9/28/11, 11:25 AM
The upgrade of the LHC towards higher luminosity requires improved L1 trigger selectivity in order to keep the maximum total trigger rate at about 100 kHz. In the L1 muon trigger system this necessitates an increase of the pT threshold for single muons. Due to the limited spatial resolution of the trigger chambers, however, the selectivity for tracks above about 20 GeV/c is insufficient for an...
Dr Gregory Michiel Iles (Imperial College Sci., Tech. & Med.)
9/28/11, 11:50 AM
A novel approach to first-level hardware triggering has been studied and a prototype system built. Calorimeter trigger primitive data (~5 Tb/s) are reorganised and time-multiplexed so that a single processing node (FPGA) may access the data corresponding to the entire detector for a given bunch crossing. This provides maximal flexibility in the construction of new trigger algorithms, which...
Janos Ero (Institut fuer Hochenergiephysik (HEPHY))
9/28/11, 12:15 PM
The present CMS Trigger Drift Tube Track Finder Unit was designed between 2003 and 2006. The long Shutdown planned for 2016-2017 gives an opportunity to perform a basic upgrade of this system. The rapid technology development allows us to redesign the electronic groups and structures in such a way that a smaller, more reliable facility with easier control and reduced maintenance can be built.