Galli, D. (2009) Software trigger systems in High Energy Physics. Il nuovo cimento C, 32 (2). pp. 129-137. ISSN 1826-9885
|
Text
ncc9398.pdf - Published Version Download (165kB) | Preview |
Abstract
In order to efficiently collect and store experimental data, the High Energy Physics experiments need a trigger system to separate—in real-time—interesting experimental events (signal) from uninteresting ones (background). With the aim of optimising the performance, a modern trigger system splits the data selection task into two or more stages, where the highest-level one is usually implemented as a great deal of software processes (software trigger) running in parallel on the nodes of a computer farm which can reach the size of 2000–5000 PCs. Data link technologies and operating environment used in the most challenging High Level Triggers of the recent High Energy Physics experiments are here reviewed. In particular, the High Level Trigger of the LHCb experiment at CERN, which has the highest input event rate (1.1 MHz) among the forthcoming experiments, is taken as an example.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Data acquisition: hardware and software ; Experimental methods and instrumentation for elementary-particle and nuclear physics ; Data acquisition and sorting ; Computer data analysis |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 25 Mar 2020 15:19 |
| Last Modified: | 25 Mar 2020 15:19 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/16527 |
Actions (login required)
 |
View Item |
