The ATLAS High-Level Calorimeter Trigger in Run-2

ATLAS Collaboration

doi:10.1088/1742-6596/1162/1/012038

The ATLAS High-Level Calorimeter Trigger in Run-2

ATLAS Collaboration

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Abstract

The ATLAS Experiment uses a two-level triggering system to identify and record proton-proton collision events containing a wide variety of physics signatures. It reduces the event rate from the bunch crossing rate of 40 MHz to an average recording rate of 1 kHz, whilst maintaining high efficiency for interesting collision events. It is composed of an initial hardware-based level-1 trigger followed by a software-based high-level trigger. A central component of the high-level trigger is the calorimeter trigger. This is responsible for processing data from the electromagnetic and hadronic calorimeters in order to identify electrons, photons, taus, jets and missing transverse energy. This paper presents the performance of the high-level calorimeter trigger in Run-2, noting the improvements that have been made in response to the challenges of operating at high luminosity.

Originalsprog	Engelsk
Artikelnummer	UNSP 012038
Bogserie	Journal of Physics - Conference Series
Vol/bind	1162
Antal sider	7
ISSN	1742-6596
DOI	https://doi.org/10.1088/1742-6596/1162/1/012038
Status	Udgivet - 30 apr. 2019

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10.1088/1742-6596/1162/1/012038Licens: CC BY

Wiglesworth_2019_J._Phys.__Conf._Ser._1162_012038Forlagets udgivne version, 678 KB

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abstract = "The ATLAS Experiment uses a two-level triggering system to identify and record proton-proton collision events containing a wide variety of physics signatures. It reduces the event rate from the bunch crossing rate of 40 MHz to an average recording rate of 1 kHz, whilst maintaining high efficiency for interesting collision events. It is composed of an initial hardware-based level-1 trigger followed by a software-based high-level trigger. A central component of the high-level trigger is the calorimeter trigger. This is responsible for processing data from the electromagnetic and hadronic calorimeters in order to identify electrons, photons, taus, jets and missing transverse energy. This paper presents the performance of the high-level calorimeter trigger in Run-2, noting the improvements that have been made in response to the challenges of operating at high luminosity.",

author = "Graig Wiglesworth and M. Aaboud and G. Aad and B. Abbott and DC Abbott and O. Abdinov and AA Abud and DK Abhayasinghe and S.H. Abidi and AbouZeid, {Ossama Sherif Alexander} and NL Abraham and H. Abreu and Y. Abulaiti and B.S. Acharya and Sosuke Adachi and H. Abramowicz and Luise Adam and C. Bourdarios and Geert-Jan Besjes and Alessandra Camplani and {Alonso Diaz}, Alejandro and Galster, {Gorm Aske Gram Krohn} and Hansen, {J{\o}rn Dines} and Mogens Dam and Hansen, {J{\o}rgen Beck} and {de Almeida Dias}, Flavia and Hansen, {Peter Henrik} and Monk, {James William} and hqz214 hqz214 and Milena Bajic and Stark, {Simon Holm} and Rosanna Ignazzi and Stefania Xella and Petersen, {Troels Christian} and {ATLAS Collaboration}",

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AU - Abdinov, O.

AU - Abud, AA

AU - Abhayasinghe, DK

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AU - Abraham, NL

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B.S.

AU - Adachi, Sosuke

AU - Abramowicz, H.

AU - Adam, Luise

AU - Bourdarios, C.

AU - Besjes, Geert-Jan

AU - Camplani, Alessandra

AU - Alonso Diaz, Alejandro

AU - Galster, Gorm Aske Gram Krohn

AU - Hansen, Jørn Dines

AU - Dam, Mogens

AU - Hansen, Jørgen Beck

AU - de Almeida Dias, Flavia

AU - Hansen, Peter Henrik

AU - Monk, James William

AU - hqz214, hqz214

AU - Bajic, Milena

AU - Stark, Simon Holm

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N2 - The ATLAS Experiment uses a two-level triggering system to identify and record proton-proton collision events containing a wide variety of physics signatures. It reduces the event rate from the bunch crossing rate of 40 MHz to an average recording rate of 1 kHz, whilst maintaining high efficiency for interesting collision events. It is composed of an initial hardware-based level-1 trigger followed by a software-based high-level trigger. A central component of the high-level trigger is the calorimeter trigger. This is responsible for processing data from the electromagnetic and hadronic calorimeters in order to identify electrons, photons, taus, jets and missing transverse energy. This paper presents the performance of the high-level calorimeter trigger in Run-2, noting the improvements that have been made in response to the challenges of operating at high luminosity.

AB - The ATLAS Experiment uses a two-level triggering system to identify and record proton-proton collision events containing a wide variety of physics signatures. It reduces the event rate from the bunch crossing rate of 40 MHz to an average recording rate of 1 kHz, whilst maintaining high efficiency for interesting collision events. It is composed of an initial hardware-based level-1 trigger followed by a software-based high-level trigger. A central component of the high-level trigger is the calorimeter trigger. This is responsible for processing data from the electromagnetic and hadronic calorimeters in order to identify electrons, photons, taus, jets and missing transverse energy. This paper presents the performance of the high-level calorimeter trigger in Run-2, noting the improvements that have been made in response to the challenges of operating at high luminosity.

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DO - 10.1088/1742-6596/1162/1/012038

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VL - 1162

JO - Journal of Physics - Conference Series

JF - Journal of Physics - Conference Series

M1 - UNSP 012038

ER -

The ATLAS High-Level Calorimeter Trigger in Run-2

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