Configuration of the ATLAS trigger

R. Spiwoks; A. Dos Anjos; N. Ellis; J. Haller; N. Iqbal; M. Landon; T. Wengler; W. Wiedenmann; H. Zobernig

Configuration of the ATLAS trigger

R. Spiwoks, A. Dos Anjos, N. Ellis, J. Haller, N. Iqbal, M. Landon, T. Wengler, W. Wiedenmann, H. Zobernig

Research output: Chapter in Book/Conference proceeding › Conference contribution

Abstract

The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a rate of 40 MHz. In order to reduce the data rate only potentially interesting events are selected by a three-level trigger system. Its first level is implemented in electronics and firmware, and aims at reducing the data rate to about 75 kHz. The second and third trigger levels are based on software and reduce the data rate to about 200 Hz. To prepare the full trigger chain for the online event selection according to a certain strategy, a system is being set up that provides the corresponding information to all parts of the trigger chain, e.g. values of hardware registers in the first-level trigger or steering parameters in the high-level trigger algorithms. The same information is used to configure offline trigger simulation and to run offline analysis. This article gives an overview of the system and its main components.

Original language	English
Title of host publication	Proceedings - 11th Workshop on Electronics for LHC and Future Experiments, LECC 2005\|Proc. - Workshop Electron. LHC Future Exp., LECC
Publisher	CERN
Pages	269-273
Number of pages	4
Publication status	Published - Sept 2005
Event	11th Workshop on Electronics for LHC and Future Experiments, LECC 2005 - Heidelberg Duration: 1 Jul 2005 → … http://lhc-workshop-2005.web.cern.ch/lhc%2Dworkshop%2D2005/ParallelSessionB/48-RalfSpiwoks2.pdf

Conference

Conference	11th Workshop on Electronics for LHC and Future Experiments, LECC 2005
City	Heidelberg
Period	1/07/05 → …
Internet address	http://lhc-workshop-2005.web.cern.ch/lhc%2Dworkshop%2D2005/ParallelSessionB/48-RalfSpiwoks2.pdf

Keywords

LHC ATLAS Trigger configuration

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Spiwoks, R., Dos Anjos, A., Ellis, N., Haller, J., Iqbal, N., Landon, M., Wengler, T., Wiedenmann, W., & Zobernig, H. (2005). Configuration of the ATLAS trigger. In Proceedings - 11th Workshop on Electronics for LHC and Future Experiments, LECC 2005|Proc. - Workshop Electron. LHC Future Exp., LECC (pp. 269-273). CERN. http://lhc-workshop-2005.web.cern.ch/lhc%2Dworkshop%2D2005/ParallelSessionB/48-RalfSpiwoks2.pdf

@inproceedings{7a85394e0eb545beb770d05148f238c2,

title = "Configuration of the ATLAS trigger",

abstract = "The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a rate of 40 MHz. In order to reduce the data rate only potentially interesting events are selected by a three-level trigger system. Its first level is implemented in electronics and firmware, and aims at reducing the data rate to about 75 kHz. The second and third trigger levels are based on software and reduce the data rate to about 200 Hz. To prepare the full trigger chain for the online event selection according to a certain strategy, a system is being set up that provides the corresponding information to all parts of the trigger chain, e.g. values of hardware registers in the first-level trigger or steering parameters in the high-level trigger algorithms. The same information is used to configure offline trigger simulation and to run offline analysis. This article gives an overview of the system and its main components.",

keywords = "LHC ATLAS Trigger configuration",

author = "R. Spiwoks and {Dos Anjos}, A. and N. Ellis and J. Haller and N. Iqbal and M. Landon and T. Wengler and W. Wiedenmann and H. Zobernig",

year = "2005",

month = sep,

language = "English",

pages = "269--273",

booktitle = "Proceedings - 11th Workshop on Electronics for LHC and Future Experiments, LECC 2005|Proc. - Workshop Electron. LHC Future Exp., LECC",

publisher = "CERN",

address = "Switzerland",

note = "11th Workshop on Electronics for LHC and Future Experiments, LECC 2005 ; Conference date: 01-07-2005",

url = "http://lhc-workshop-2005.web.cern.ch/lhc%2Dworkshop%2D2005/ParallelSessionB/48-RalfSpiwoks2.pdf",

}

Spiwoks, R, Dos Anjos, A, Ellis, N, Haller, J, Iqbal, N, Landon, M, Wengler, T, Wiedenmann, W & Zobernig, H 2005, Configuration of the ATLAS trigger. in Proceedings - 11th Workshop on Electronics for LHC and Future Experiments, LECC 2005|Proc. - Workshop Electron. LHC Future Exp., LECC. CERN, pp. 269-273, 11th Workshop on Electronics for LHC and Future Experiments, LECC 2005, Heidelberg, 1/07/05. <http://lhc-workshop-2005.web.cern.ch/lhc%2Dworkshop%2D2005/ParallelSessionB/48-RalfSpiwoks2.pdf>

TY - GEN

T1 - Configuration of the ATLAS trigger

AU - Spiwoks, R.

AU - Dos Anjos, A.

AU - Ellis, N.

AU - Haller, J.

AU - Iqbal, N.

AU - Landon, M.

AU - Wengler, T.

AU - Wiedenmann, W.

AU - Zobernig, H.

PY - 2005/9

Y1 - 2005/9

N2 - The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a rate of 40 MHz. In order to reduce the data rate only potentially interesting events are selected by a three-level trigger system. Its first level is implemented in electronics and firmware, and aims at reducing the data rate to about 75 kHz. The second and third trigger levels are based on software and reduce the data rate to about 200 Hz. To prepare the full trigger chain for the online event selection according to a certain strategy, a system is being set up that provides the corresponding information to all parts of the trigger chain, e.g. values of hardware registers in the first-level trigger or steering parameters in the high-level trigger algorithms. The same information is used to configure offline trigger simulation and to run offline analysis. This article gives an overview of the system and its main components.

AB - The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a rate of 40 MHz. In order to reduce the data rate only potentially interesting events are selected by a three-level trigger system. Its first level is implemented in electronics and firmware, and aims at reducing the data rate to about 75 kHz. The second and third trigger levels are based on software and reduce the data rate to about 200 Hz. To prepare the full trigger chain for the online event selection according to a certain strategy, a system is being set up that provides the corresponding information to all parts of the trigger chain, e.g. values of hardware registers in the first-level trigger or steering parameters in the high-level trigger algorithms. The same information is used to configure offline trigger simulation and to run offline analysis. This article gives an overview of the system and its main components.

KW - LHC ATLAS Trigger configuration

M3 - Conference contribution

SP - 269

EP - 273

BT - Proceedings - 11th Workshop on Electronics for LHC and Future Experiments, LECC 2005|Proc. - Workshop Electron. LHC Future Exp., LECC

PB - CERN

T2 - 11th Workshop on Electronics for LHC and Future Experiments, LECC 2005

Y2 - 1 July 2005

ER -

Configuration of the ATLAS trigger

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