Performance of the ATLAS liquid argon calorimeter with cosmic muons and single LHC beam data

被引：0

作者：

Mangeard, Pierre-Simon ^{[1
]}

机构：

[1] Aix Marseille Univ, CNRS, IN2P3, Ctr Phys Particules Marseille, Marseille, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 623卷 / 01期

关键词：

ATLAS; Liquid argon sampling calorimeter; Performance; Cosmic muons;

D O I：

10.1016/j.nima.2010.02.200

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Liquid Argon (LAr) calorimeter is a key detector in the ATLAS (A Toroidal LHC ApparatuS) experiment at the Large Hadron Collider (LHC), designed to provide precision measurements of electrons, photons, jets and missing transverse energy. Cosmic muon data has been recorded by the LAr calorimeter at various stages of commissioning, with the first single LHC beam data being recorded in September 2008. We present here the LAr calorimeter performance studies based on cosmic muons and LHC beam data. In 2008, similar to 99% of the LAr readout channels were fully operational. The high energy deposits in the calorimeter readout cells have been used to validate the signal shape reconstruction from calibration predictions at a level better than similar to 2%. The measured timing alignment agrees with expectations at the 2 ns level. The non-uniformity of the barrel electromagnetic (EM) calorimeter has been estimated less than 2% thanks to cosmic muons. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：216 / 218

页数：3

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