CaltechAUTHORS
  A Caltech Library Service

Readiness of the ATLAS liquid argon calorimeter for LHC collisions

Aad, G. and Gray, H. M. and Mateos, D. Lopez and Marshall, Z. and Perez, K. (2010) Readiness of the ATLAS liquid argon calorimeter for LHC collisions. European Physical Journal C, 70 (3). pp. 723-753. ISSN 1434-6044. https://resolver.caltech.edu/CaltechAUTHORS:20110203-084228756

[img]
Preview
PDF - Published Version
Creative Commons Attribution Non-commercial.

2155Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20110203-084228756

Abstract

The ATLAS liquid argon calorimeter has been operating continuously since August 2006. At this time, only part of the calorimeter was readout, but since the beginning of 2008, all calorimeter cells have been connected to the ATLAS readout system in preparation for LHC collisions. This paper gives an overview of the liquid argon calorimeter performance measured in situ with random triggers, calibration data, cosmic muons, and LHC beam splash events. Results on the detector operation, timing performance, electronics noise, and gain stability are presented. High energy deposits from radiative cosmic muons and beam splash events allow to check the intrinsic constant term of the energy resolution. The uniformity of the electromagnetic barrel calorimeter response along η (averaged over ø) is measured at the percent level using minimum ionizing cosmic muons. Finally, studies of electromagnetic showers from radiative muons have been used to cross-check the Monte Carlo simulation. The performance results obtained using the ATLAS readout, data acquisition, and reconstruction software indicate that the liquid argon calorimeter is well-prepared for collisions at the dawn of the LHC era.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1140/epjc/s10052-010-1354-yDOIUNSPECIFIED
http://www.springerlink.com/content/p2r708p58877v264/PublisherUNSPECIFIED
Additional Information:© CERN for the benefit of the ATLAS collaboration 2010. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. Received: 14 December 2009; Revised: 11 May 2010; Published online: 20 August 2010. We are greatly indebted to all CERN’s departments and to the LHC project for their immense efforts not only in building the LHC, but also for their direct contributions to the construction and installation of the ATLAS detector and its infrastructure. We acknowledge equally warmly all our technical colleagues in the collaborating institutions without whom the ATLAS detector could not have been built. Furthermore we are grateful to all the funding agencies which supported generously the construction and the commissioning of the ATLAS detector and also provided the computing infrastructure. The ATLAS detector design and construction has taken about fifteen years, and our thoughts are with all our colleagues who sadly could not see its final realisation. We acknowledge the support of ANPCyT, Argentina; Yerevan Physics Institute, Armenia; ARC and DEST, Australia; Bundesministerium für Wissenschaft und Forschung, Austria; National Academy of Sciences of Azerbaijan; State Committee on Science & Technologies of the Republic of Belarus; CNPq and FINEP, Brazil; NSERC, NRC, and CFI, Canada; CERN; NSFC, China; Ministry of Education, Youth and Sports of the Czech Republic, Ministry of Industry and Trade of the Czech Republic, and Committee for Collaboration of the Czech Republic with CERN; Danish Natural Science Research Council; European Commission, through the ARTEMIS Research Training Network; IN2P3-CNRS and Dapnia-CEA, France; Georgian Academy of Sciences; BMBF, DESY, DFG and MPG, Germany; Ministry of Education and Religion, through the EPEAEK program PYTHAGORAS II and GSRT, Greece; ISF, MINERVA, GIF, DIP, and Benoziyo Center, Israel; INFN, Italy; MEXT, Japan; CNRST, Morocco; FOM and NWO, Netherlands; The Research Council of Norway; Ministry of Science and Higher Education, Poland; GRICES and FCT, Portugal; Ministry of Education and Research, Romania; Ministry of Education and Science of the Russian Federation, Russian Federal Agency of Science and Innovations, and Russian Federal Agency of Atomic Energy; JINR; Ministry of Science, Serbia; Department of International Science and Technology Cooperation, Ministry of Education of the Slovak Republic; Slovenian Research Agency, Ministry of Higher Education, Science and Technology, Slovenia; Ministerio de Educación y Ciencia, Spain; The Swedish Research Council, The Knut and Alice Wallenberg Foundation, Sweden; State Secretariat for Education and Science, Swiss National Science Foundation, and Cantons of Bern and Geneva, Switzerland; National Science Council, Taiwan; TAEK, Turkey; The Science and Technology Facilities Council and The Leverhulme Trust, United Kingdom; DOE and NSF, United States of America.
Funders:
Funding AgencyGrant Number
ANPCyT (Argentina)UNSPECIFIED
Yerevan Physics Institute (Armenia)UNSPECIFIED
ARC (Australia)UNSPECIFIED
DEST (Australia)UNSPECIFIED
Bundesministerium fur Wissenschaft und Forschung (Austria)UNSPECIFIED
National Academy of Sciences of AzerbaijanUNSPECIFIED
State Committee on Science & Technologies (Republic of Belarus)UNSPECIFIED
CNPq (Brazil)UNSPECIFIED
FINEP (Brazil)UNSPECIFIED
NSERC (Canada)UNSPECIFIED
NRC Canada)UNSPECIFIED
CFI (Canada)UNSPECIFIED
CERNUNSPECIFIED
NSFC (China)UNSPECIFIED
Ministry of Education, Youth and Sports (Czech Republic)UNSPECIFIED
Ministry of Industry and Trade (Czech Republic)UNSPECIFIED
Committee for Collaboration of the Czech Republic with CERNUNSPECIFIED
Danish Natural Science Research CouncilUNSPECIFIED
European Commission, ARTEMIS Research Training NetworkUNSPECIFIED
CNRS (France)IN2P3
Dapnia-CEA (France)UNSPECIFIED
Georgian Academy of SciencesUNSPECIFIED
BMBF (Germany)UNSPECIFIED
DESY (Germany)UNSPECIFIED
DFG (Germany)UNSPECIFIED
MPG (Germany)UNSPECIFIED
Ministry of Education and Religion, GreeceUNSPECIFIED
GSRT (Greece)UNSPECIFIED
ISF (Israel)UNSPECIFIED
MINERVA (Israel)UNSPECIFIED
GIF (Israel)UNSPECIFIED
DIP (Israel)UNSPECIFIED
Benoziyo Center (Israel)UNSPECIFIED
INFN (Italy)UNSPECIFIED
MEXT (Japan)UNSPECIFIED
CNRST (Morocco)UNSPECIFIED
FOM (Netherlands)UNSPECIFIED
NWO (Netherlands)UNSPECIFIED
Research Council of NorwayUNSPECIFIED
Ministry of Science and Higher Education (Poland)UNSPECIFIED
GRICES (Portugal)UNSPECIFIED
FCT (Portugal)UNSPECIFIED
Ministry of Education and Research (Romania)UNSPECIFIED
Ministry of Education and Science of the Russian FederationUNSPECIFIED
Russian Federal Agency of Science and InnovationsUNSPECIFIED
Russian Federal Agency of Atomic EnergyUNSPECIFIED
JINRUNSPECIFIED
Ministry of Science (Serbia)UNSPECIFIED
Department of International Science and Technology CooperationUNSPECIFIED
Slovenian Research Agency (Slovenia)UNSPECIFIED
Ministry of Higher Education, Science and Technology (Slovenia)UNSPECIFIED
Ministerio de Educacion y Ciencia (Spain)UNSPECIFIED
Swedish Research Council, The Knut and Alice Wallenberg Foundation (Sweden)UNSPECIFIED
Swiss National Science Foundation (SNSF)UNSPECIFIED
Cantons of Bern and Geneva (Switzerland)UNSPECIFIED
National Science Council (Taiwan)UNSPECIFIED
TAEK (Turkey)UNSPECIFIED
Science and Technology Facilities Council (United Kingdom)UNSPECIFIED
Leverhulme Trust (United Kingdom)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Issue or Number:3
Record Number:CaltechAUTHORS:20110203-084228756
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110203-084228756
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21977
Collection:CaltechAUTHORS
Deposited By: Benjamin Perez
Deposited On:08 Feb 2011 19:47
Last Modified:03 Oct 2019 02:32

Repository Staff Only: item control page