CERN Accelerating science

ATLAS Note
Report number	ATL-DAQ-PROC-2012-018
Title	Instrumentation of the upgraded ATLAS tracker with a double buffer front-end architecture for track triggering
Author(s)	Wardrope, DR (University Coll. London)
Corporate Author(s)	The ATLAS collaboration
Publication	2012
Imprint	13 Jun 2012
Number of pages	8
In:	Workshop on Intelligent Trackers 2012, INFN Pisa, Pisa, Italy, 3 - 5 May 2012
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	Trigger ; Double Buffer ; Level-0 + Level-1 ; Track Trigger
Abstract	The Large Hadron Collider will be upgraded to provide instantaneous luminosity $L=5\times10^{34}\,\mbox{cm}^{-2}\mbox{s}^{-1}$, leading to excessive rates from the ATLAS Level-1 trigger. A double buffer front-end architecture for the ATLAS tracker replacement is proposed, that will enable the use of track information in trigger decisions within 20$\,\mu$s in order to reduce the high trigger rates. Analysis of ATLAS simulations have found that using track information will enable the use of single lepton triggers with transverse momentum thresholds of $p_{T}\sim25\,$GeV, which will be of great benefit to the future physics programme of ATLAS
Copyright/License	Preprint: (License: CC-BY-4.0)

Corresponding record in: Inspire