CERN Accelerating science

ATLAS Note
Report number	ATL-DAQ-PROC-2014-042
Title	Upgrade of the ATLAS Central Trigger for LHC Run-2
Author(s)	Artz, Sebastian (Mainz U.) ; Bauss, Bruno (Mainz U.) ; Boterenbrood, Hendrik (NIKHEF, Amsterdam) ; Buescher, Volker (Mainz U.) ; Degele, Reinold (Mainz U.) ; Dhaliwal, Saminder (NIKHEF, Amsterdam) ; Ellis, Nicolas (CERN) ; Farthouat, Philippe (CERN) ; Galster, Gorm Aske Gram (Copenhagen U.) ; Ghibaudi, Marco (CERN) ; Glatzer, Julian Maximilian Volker (CERN) ; Haas, Stefan (CERN) ; Igonkina, Olga (NIKHEF, Amsterdam) ; Jakobi, Katharina Bianca (Mainz U.) ; Jansweijer, Peter Paul Maarten (NIKHEF, Amsterdam) ; Kahra, Christian (Mainz U.) ; Kaluza, Adam (Mainz U.) ; Kaneda, Michiru (CERN) ; Marzin, Antoine (CERN) ; Ohm, Christian (LBL, Berkeley) ; Silva Oliveira, Marcos Vinicius (Juiz de Fora U.) ; Pauly, Thilo (CERN) ; Poettgen, Ruth (Mainz U.) ; Reiss, Andreas (Mainz U.) ; Schaefer, Uli (Mainz U.) ; Schaeffer, Jan (Mainz U.) ; Schipper, Jan David (NIKHEF, Amsterdam) ; Schmieden, Kristof (CERN) ; Schreuder, Frans Philip (NIKHEF, Amsterdam) ; Simioni, Eduard (Mainz U.) ; Spiwoks, Ralf (CERN) ; Stelzer, Harald Joerg (CERN) ; Tapprogge, Stefan (Mainz U.) ; Vermeulen, Jos (NIKHEF, Amsterdam) ; Vogel, Adrian (University of Bonn) ; Zinser, Markus (Mainz U.)
Corporate Author(s)	The ATLAS collaboration
Publication	2015
Imprint	14 Nov 2014
Number of pages	6
In:	JINST 10 (2015) C02030
In:	Topical Workshop on Electronics for Particle Physics 2014, Aix En Provence, France, 22 - 26 Sep 2014, pp.C02030
DOI	10.1088/1748-0221/10/02/C02030
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	ATLAS ; Trigger ; upgrade
Abstract	The increased energy and luminosity of the LHC in the run-2 data taking period requires a more selective trigger menu in order to satisfy the physics goals of ATLAS. Therefore the electronics of the central trigger system is upgraded to allow for a larger variety and more sophisticated trigger criteria. In addition, the software controlling the central trigger processor (CTP) has been extended to allow the CTP to accommodate three freely configurable and separately operating sets of sub detectors, each independently using the almost full functionality of the trigger hardware. This new approach and its operational advantages are discussed as well as the hardware upgrades.
Copyright/License	Preprint: (License: CC-BY-4.0)

Corresponding record in: Inspire