Calibration of the CMS Electromagnetic Calorimeter with first LHC data

被引：0

作者：

Obertino, M. M. ^{[1
,2
]}

机构：

[1] INFN Torino, Turin, Italy

[2] Univ Piemonte Orientale, Novara, Italy

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2011年 / 215卷

关键词：

D O I：

10.1016/j.nuclphysbps.2011.04.002

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The electromagnetic calorimeter (ECAL) of the CMS experiment is a high-granularity, homogeneous, hermetic detector made of lead tungstate crystals. Its potential performances are outstanding in terms of energy resolution, dynamic range and noise level. However, the energy resolution depends crucially on the channel to channel inter-calibration precision. Thus, intercalibrating ECAL in situ at the LHC, to achieve the designed energy resolution approaching 0.5% for high-energy unconverted photons, is essential to fully exploit the physics reach of the detector, particularly for the discovery of the Higgs boson in the two-photon decay channel. A detailed description of the strategies for in situ calibration of the calorimeter in 2010 is given, focusing on the crystal intercalibration with the phi-symmetry and pi(0) methods. Preliminary results based on first collision data are presented.

引用

页码：182 / 184

页数：3

共 4 条

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Britton, D. ;

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Cavallari, F. ;

Cerutti, M. ;

Chamont, D. ;

Chang, P. ;

Chang, Y. H. ;

Charlot, C. ;

Chatterji, S. ;

Chen, E. A. ;

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JOURNAL OF INSTRUMENTATION, 2007, 2

[2]

*CMS COLL, 2010, EGM10003 CMS COLL PA

[3]

CMS collaboration, 2010, JINST, V5

[4]

The CMS ECAL Group, 2008, JINST, V3

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