CMS Central Hadron Calorimeter

CMS Central Hadron Calorimeter

We present a description of the CMS central hadron calorimeter. We describe the production of the 1996 CMS hadron testbeam module. We show the results of the quality control tests of the testbeam module. We present some results of the 1995 CMS hadron testbeam. The design of the CMS detector starts with the 4 T solenoidal magnet of length 13 m and inner diameter 5.9 m. The magnet determines many...

Study of the CMS hadron calorimeter barrel/endcap transition region

We discuss the expected response of CMS calorimetry to single hadrons and jets in the transition region between the barrel and endcap for a number of different geometries of the ”cable path”. These results are an important element in choosing the optimal design for the hadron calorimeter in an effort to optimise the Emiss t resolution of the detector.

The CMS electromagnetic calorimeter

From 2007 the new CERN proton proton collider will start collisions that could open new perspectives in the fields of high energy particle physics. The CMS experiment at the LHC is in advanced construction phase. In particular new physics could be discovered thanks to the CMS precise electromagnetic calorimeter (ECAL) made of about 75000 scintillating PbWO 4 crystals. A description of the ECAL ...

The CMS Electromagnetic Calorimeter Readout

CMS is a general-purpose detector designed for use in the large hadron collider (LHC) at CERN. The electromagnetic calorimeter will play an important role in electron and photon energy measurements. The benchmark process to evaluate and optimize its performance is H −→ γγ in the intermediate mass range (90 < mH < 150 GeV). For this purpose, each element of the readout chain has to be optimized....

Analysis of Data Taken with Silicon Photomultipliers in the Outer Hadron Calorimeter of the CMS Detector