The CMS electromagnetic trigger: Commissioning and performance toward the start of operation

CMS Collaboration

The CMS electromagnetic trigger: Commissioning and performance toward the start of operation

CMS Collaboration

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

Abstract

The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energy. It is made of 75848 lead tungstate (PbWO₄) crystals and its characteristics have been optimized for the search of the Higgs boson in its two photons decay mode. In view of the high interaction rate at the Large Hadron Collider (LHC), CMS implements a sophisticated online selection system that achieves a rejection factor of nearly 10⁶. In the intense hadronic environment, the ECAL trigger system provides a powerful tool to select interesting physics events which may contain electrons or photons in their final states. Comic ray data recorded by the CMS experiment have been analyzed in order to estimate the ECAL trigger performance in terms of efficiency.

Original language	English
Article number	100
Journal	Proceedings of Science
Volume	102
Publication status	Published - 1 Jan 2009
Event	20th Hadron Collider Physics Symposium, HCP 2009 - Evian, France Duration: 16 Nov 2009 → 20 Nov 2009

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@article{719d63ca24c14bf6865075205b3f0f44,

title = "The CMS electromagnetic trigger: Commissioning and performance toward the start of operation",

abstract = "The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energy. It is made of 75848 lead tungstate (PbWO4) crystals and its characteristics have been optimized for the search of the Higgs boson in its two photons decay mode. In view of the high interaction rate at the Large Hadron Collider (LHC), CMS implements a sophisticated online selection system that achieves a rejection factor of nearly 106. In the intense hadronic environment, the ECAL trigger system provides a powerful tool to select interesting physics events which may contain electrons or photons in their final states. Comic ray data recorded by the CMS experiment have been analyzed in order to estimate the ECAL trigger performance in terms of efficiency.",

author = "\{CMS Collaboration\} and Alexandre Zabi",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.; 20th Hadron Collider Physics Symposium, HCP 2009 ; Conference date: 16-11-2009 Through 20-11-2009",

year = "2009",

month = jan,

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language = "English",

volume = "102",

journal = "Proceedings of Science",

issn = "1824-8039",

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TY - JOUR

T1 - The CMS electromagnetic trigger

T2 - 20th Hadron Collider Physics Symposium, HCP 2009

AU - CMS Collaboration

AU - Zabi, Alexandre

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

PY - 2009/1/1

Y1 - 2009/1/1

N2 - The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energy. It is made of 75848 lead tungstate (PbWO4) crystals and its characteristics have been optimized for the search of the Higgs boson in its two photons decay mode. In view of the high interaction rate at the Large Hadron Collider (LHC), CMS implements a sophisticated online selection system that achieves a rejection factor of nearly 106. In the intense hadronic environment, the ECAL trigger system provides a powerful tool to select interesting physics events which may contain electrons or photons in their final states. Comic ray data recorded by the CMS experiment have been analyzed in order to estimate the ECAL trigger performance in terms of efficiency.

AB - The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energy. It is made of 75848 lead tungstate (PbWO4) crystals and its characteristics have been optimized for the search of the Higgs boson in its two photons decay mode. In view of the high interaction rate at the Large Hadron Collider (LHC), CMS implements a sophisticated online selection system that achieves a rejection factor of nearly 106. In the intense hadronic environment, the ECAL trigger system provides a powerful tool to select interesting physics events which may contain electrons or photons in their final states. Comic ray data recorded by the CMS experiment have been analyzed in order to estimate the ECAL trigger performance in terms of efficiency.

M3 - Conference article

AN - SCOPUS:85055573140

SN - 1824-8039

VL - 102

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 100

Y2 - 16 November 2009 through 20 November 2009

ER -

The CMS electromagnetic trigger: Commissioning and performance toward the start of operation

Abstract

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