| Article | |
| Title | Feasibility studies of a Level-1 Tracking Trigger for ATLAS |
| Author(s) | Warren, M (University Coll. London) ; Bizjak, I (University Coll. London) ; Brenner, R (Uppsal U.) ; Konstantinidis, N (University Coll. London) ; Sutton, M (Sheffield U.) |
| Publication | CERN, 2009 |
| In: | Proceedings of the Topical Workshop on Electronics for Particle Physics, pp.239-242 |
| DOI | 10.5170/CERN-2009-006.239 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN SLHC ; ATLAS |
| Abstract | The existing ATLAS Level-1 trigger system is seriously challenged at the SLHC's higher luminosity. A hardware tracking trigger might be needed, but requires a detailed understanding of the detector. Simulation of high pile-up events, with various data-reduction techniques applied will be described. Two scenarios are envisaged: (a) regional readout - calorimeter and muon triggers are used to identify portions of the tracker; and (b) track-stub finding using special trigger layers. A proposed hardware system, including data reduction on the front-end ASICs, readout within a super-module and integrating regional triggering into all levels of the readout system, will be discussed. |
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