The fast tracker processor for hadronic collider triggers

Author

Annovi, A. ; Bagliesi, M.G. ; Bardi, A. ; Carosi, R. ; Orso, M. Dell ; Onofrio, M.D. ; Giannetti, P. ; Iannaccone, G. ; Morsani, F. ; Pietri, M. ; Varotto, G.

Author_Institution

INFN, Pisa, Italy

Volume

2

fYear

2000

fDate

6/22/1905 12:00:00 AM

Abstract

Perspective for precise and fast track reconstruction in future hadronic collider experiments are addressed. We discuss the feasibility of a pipelined highly parallelized processor dedicated to the implementation of a very fast algorithm. The algorithm is based on the use of a large bank of pre-stored combinations of trajectory points (patterns) for extremely complex tracking systems. The CMS experiment at LHC is used as a benchmark. Tracking data from the events selected by the level-1 trigger are sorted and filtered by the Fast Tracker processor at a rate of 100 kHz. This data organization allows the level-2 trigger logic to reconstruct full resolution tracks with transverse momentum above few GeV and search secondary vertexes within typical level-2 times

Keywords

colliding beam accelerators; data acquisition; high energy physics instrumentation computing; nuclear electronics; parallel processing; trigger circuits; 100 kHz; CMS experiment; complex tracking systems; data organization; data tracking; fast algorithm; fast track reconstruction; fast tracker processor; full resolution tracks; hadronic collider triggers; level-1 trigger; level-2 trigger logic; pipelined highly parallelized processor; secondary vertexes; trajectory points; transverse momentum; Associative memory; Collision mitigation; Delay; Detectors; Hardware; Logic; Pattern recognition; Pipeline processing; Roads; Silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2000 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-6503-8

Type

conf

DOI

10.1109/NSSMIC.2000.949955

Filename

949955