CMS level-1 electron and photon trigger commissioning and performance on 7 TeV data

Clémentine Broutin; Pascal Paganini; Alexandre Zabi

CMS level-1 electron and photon trigger commissioning and performance on 7 TeV data

Clémentine Broutin, Pascal Paganini, Alexandre Zabi

Université Paris-Sud

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

Abstract

The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energies. 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 implemented a sophisticated online selection system that achieves a rejection factor of O(4 · 10⁵). In the intense hadronic environment, the electron and photon trigger system provides a powerful tool to select interesting physics events containing electrons or photons in their final states. The first 7 TeV collision events recorded by the CMS experiment have been analyzed in order to estimate the electron and photon trigger performance in terms of efficiency.

Original language	English
Journal	Proceedings of Science
Volume	120
Publication status	Published - 1 Jan 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 = "CMS level-1 electron and photon trigger commissioning and performance on 7 TeV data",

abstract = "The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energies. 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 implemented a sophisticated online selection system that achieves a rejection factor of O(4 · 105). In the intense hadronic environment, the electron and photon trigger system provides a powerful tool to select interesting physics events containing electrons or photons in their final states. The first 7 TeV collision events recorded by the CMS experiment have been analyzed in order to estimate the electron and photon trigger performance in terms of efficiency.",

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T1 - CMS level-1 electron and photon trigger commissioning and performance on 7 TeV data

AU - Broutin, Clémentine

AU - Paganini, Pascal

AU - Zabi, Alexandre

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

PY - 2010/1/1

Y1 - 2010/1/1

N2 - The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energies. 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 implemented a sophisticated online selection system that achieves a rejection factor of O(4 · 105). In the intense hadronic environment, the electron and photon trigger system provides a powerful tool to select interesting physics events containing electrons or photons in their final states. The first 7 TeV collision events recorded by the CMS experiment have been analyzed in order to estimate the electron and photon trigger performance in terms of efficiency.

AB - The CMS electromagnetic calorimeter (ECAL) has been designed to precisely measure electron and photon energies. 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 implemented a sophisticated online selection system that achieves a rejection factor of O(4 · 105). In the intense hadronic environment, the electron and photon trigger system provides a powerful tool to select interesting physics events containing electrons or photons in their final states. The first 7 TeV collision events recorded by the CMS experiment have been analyzed in order to estimate the electron and photon trigger performance in terms of efficiency.

M3 - Conference article

AN - SCOPUS:85053796585

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 -

CMS level-1 electron and photon trigger commissioning and performance on 7 TeV data

Abstract

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