Speaker
Summary
The CMS hadron calorimeter system consists of brass/scintillator sampling hadron
calorimeter (HCAL) with coverage up to |η| ≤ 3.0 , followed by the iron/quartz-fibre
Hadron Forward (HF) calorimeter with coverage 3.0 ≤ |η| ≤ 5.0, comprising 9528
readout channels in total. The installation and commissioning of the Hadron Barrel
(HB), Hadron Outer (HO), Hadron Endcap (HE) and Hadron Forward (HF) calorimeters
using local and global runs is described. The performance of the various monitoring
systems, the progress in the calibration work and the current plans for the HCAL
calorimeter during the low luminosity run will be summarized. During the
commissioning period, various technical and cosmic ray data were taken using the
global trigger system of the CMS detector. The preliminary results of those runs will
be reported.
