https://doi.org/10.1140/epjc/s10052-008-0756-6
Special Article - Tools for Experiment and Theory
Design, performance, and calibration of the CMS hadron-outer calorimeter
1
Yerevan Physics Institute, Yerevan, Armenia
2
NCPHEP, Minsk, Belarus
3
Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Science, Sofia, Bulgaria
4
KFKI-RMKI, Research Institute for Particle and Nuclear Physics, Budapest, Hungary
5
ATOMKI, Debrecen, Hungary
6
Panjab University, Chandigarh, 160 014, India
7
Tata Institute of Fundamental Research, Mumbai, India
8
Institute for Studies in Theoretical Physics, Sharif University of Technology, Tehran, Iran
9
Università di Trieste e Sezione dell’ INFN, Trieste, Italy
10
JINR, Dubna, Russia
11
ITEP, Moscow, Russia
12
Moscow State University, Moscow, Russia
13
IHEP, Protvino, Russia
14
CERN, Geneva, Switzerland
15
Cukurova University, Adana, Turkey
16
Middle East Technical University, Ankara, Turkey
17
Bogazici University, Istanbul, Turkey
18
KIPT, Kharkov, Ukraine
19
Single Crystal Institute, Kharkov, Ukraine
20
Iowa State University, Ames, IA, USA
21
Fermi National Accelerator Laboratory, Batavia, IL, USA
22
Boston University, Boston, MA, USA
23
University of Illinois at Chicago, Chicago, IL, USA
24
University of Maryland, College Park, MD, USA
25
Fairfield University, Fairfield, CT, USA
26
University of Iowa, Iowa City, IA, USA
27
Texas Tech University, Lubbock, TX, USA
28
Florida Institute of Technology, Melbourne, FL, USA
29
Florida International University, Miami, FL, USA
30
University of Minnesota, Minneapolis, MN, USA
31
Rockefeller University, New York, NY, USA
32
University of Notre Dame, Notre Dame, IN, USA
33
University of Mississippi, Oxford, MS, USA
34
Princeton University, Princeton, NJ, USA
35
Brown University, Providence, RI, USA
36
University of Rochester, Rochester, NY, USA
37
Florida State University, Tallahassee, FL, USA
38
Purdue University, West Lafayette, IN, USA
* e-mail: Sunanda.Banerjee@cern.ch
Received:
13
August
2008
Published online:
10
October
2008
The Outer Hadron Calorimeter (HCAL HO) of the CMS detector is designed to measure the energy that is not contained by the barrel (HCAL HB) and electromagnetic (ECAL EB) calorimeters. Due to space limitation the barrel calorimeters do not contain completely the hadronic shower and an outer calorimeter (HO) was designed, constructed and inserted in the muon system of CMS to measure the energy leakage. Testing and calibration of the HO was carried out in a 300 GeV/c test beam that improved the linearity and resolution. HO will provide a net improvement in missing E T measurements at LHC energies. Information from HO will also be used for the muon trigger in CMS.
© Springer-Verlag , 2008
