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. |