Calibration of the CMS Electromagnetic Calorimeter with first LHC data

被引：0

作者：

Sola, V. ^{[1
]}

机构：

[1] Univ Turin, I-10124 Turin, Italy

来源：

COSMIC RAYS FOR PARTICLE AND ASTROPARTICLE PHYSICS | 2011年 / 6卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The first 7 TeV LHC collisions recorded with the CMS detector have been used to perform a channel-by-channel calibration of the electromagnetic calorimeter (ECAL). Decays of pi(0) and eta into two photons as well as the azimuthal symmetry of the average energy deposition at a given pseudorapidity are utilized to equalize the response of the individual channels. The ECAL comprises a central barrel section and two endcaps. Based on an integrated luminosity of up to 250 nb(-1), a channel-by-channel in-situ calibration precision of 0.6% has been achieved in the barrel ECAL in the pseudorapidity region vertical bar eta vertical bar < 0.8. The energy scale of the ECAL has been investigated and found to agree with the simulation to within 1% in the barrel and 3% in the endcaps.

引用

页码：52 / 57

页数：6