Performance of the CMS high-level trigger

CMS Collaboration

Performance of the CMS high-level trigger

CMS Collaboration

Boston University

Research output: Contribution to journal › Conference article › peer-review

Abstract

The CMS trigger system has been designed to cope with unprecedented luminosities and accelerator bunch-crossing rates of up to 40 MHz at LHC. The High-Level-Trigger (HLT) combines, in a novel way, the traditional Level-2 and Level-3 trigger components, which are implemented in a commercial Filter Farm with thousands of CPUs. The flexibility of a uniform software environment, accessing the full Level-1 rate (100 KHz), allows the coherent tuning of the HLT algorithms to accommodate multiple physics channels and enhance the CMS physics reach. We report on the trigger commissioning of the HLT with the first LHC pp collisions at 7 TeV and discuss the first results on the trigger performance.

Original language	English
Journal	Proceedings of Science
Volume	120
State	Published - 2010
Externally published	Yes
Event	35th International Conference of High Energy Physics, ICHEP 2010 - Paris, France Duration: 22 Jul 2010 → 28 Jul 2010

Cite this

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title = "Performance of the CMS high-level trigger",

abstract = "The CMS trigger system has been designed to cope with unprecedented luminosities and accelerator bunch-crossing rates of up to 40 MHz at LHC. The High-Level-Trigger (HLT) combines, in a novel way, the traditional Level-2 and Level-3 trigger components, which are implemented in a commercial Filter Farm with thousands of CPUs. The flexibility of a uniform software environment, accessing the full Level-1 rate (100 KHz), allows the coherent tuning of the HLT algorithms to accommodate multiple physics channels and enhance the CMS physics reach. We report on the trigger commissioning of the HLT with the first LHC pp collisions at 7 TeV and discuss the first results on the trigger performance.",

author = "\{CMS Collaboration\} and Jarrin, \{Edgar Carrera\}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 35th International Conference of High Energy Physics, ICHEP 2010 ; Conference date: 22-07-2010 Through 28-07-2010",

year = "2010",

language = "Ingl{\'e}s",

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journal = "Proceedings of Science",

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TY - JOUR

T1 - Performance of the CMS high-level trigger

AU - CMS Collaboration

AU - Jarrin, Edgar Carrera

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

PY - 2010

Y1 - 2010

N2 - The CMS trigger system has been designed to cope with unprecedented luminosities and accelerator bunch-crossing rates of up to 40 MHz at LHC. The High-Level-Trigger (HLT) combines, in a novel way, the traditional Level-2 and Level-3 trigger components, which are implemented in a commercial Filter Farm with thousands of CPUs. The flexibility of a uniform software environment, accessing the full Level-1 rate (100 KHz), allows the coherent tuning of the HLT algorithms to accommodate multiple physics channels and enhance the CMS physics reach. We report on the trigger commissioning of the HLT with the first LHC pp collisions at 7 TeV and discuss the first results on the trigger performance.

AB - The CMS trigger system has been designed to cope with unprecedented luminosities and accelerator bunch-crossing rates of up to 40 MHz at LHC. The High-Level-Trigger (HLT) combines, in a novel way, the traditional Level-2 and Level-3 trigger components, which are implemented in a commercial Filter Farm with thousands of CPUs. The flexibility of a uniform software environment, accessing the full Level-1 rate (100 KHz), allows the coherent tuning of the HLT algorithms to accommodate multiple physics channels and enhance the CMS physics reach. We report on the trigger commissioning of the HLT with the first LHC pp collisions at 7 TeV and discuss the first results on the trigger performance.

UR - https://www.scopus.com/pages/publications/85053786968

M3 - Artículo de la conferencia

AN - SCOPUS:85053786968

SN - 1824-8039

VL - 120

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 35th International Conference of High Energy Physics, ICHEP 2010

Y2 - 22 July 2010 through 28 July 2010

ER -

Performance of the CMS high-level trigger

Abstract

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