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The CMS Outer Hadron Calorimeter

By Bannaje Sripathi Acharya, Tariq Aziz, Sunanda Banerjee, Sudeshna Banerjee, Harinder Singh Bawa, Suman Bala Beri, Virender Bhandari, Vipin Bhatnagar, Sanjay Chendvankar, Pandurang Vishnu Deshpande, Shashikant Dugad, Som N Ganguli, Monoranjan Guchait, Atul Gurtu, Suresh Devendrappa Kalmani, Manjit Kaur, Jatinder Mohan Kohli, Marthi Ramaswamy Krishnaswamy, Arun Kumar, Manas Maity, Gobinda Majumder, Kajari Mazumdar, Naba Kumar Mondal, P Nagaraj, Vemuri Syamala Narasimham, Mandakini Ravindra Patil, L V Reddy, B Satyanarayana, Seema Sharma, B Singh, Jas Bir Singh, Katta Sudhakar, Suresh C Tonwar and Piyush Verma

Abstract

The CMS hadron calorimeter is a sampling calorimeter with brass absorber and plastic scintillator tiles with wavelength shifting fibres for carrying the light to the readout device. The barrel hadron calorimeter is complemented with a outer calorimeter to ensure high energy shower containment in CMS and thus working as a tail catcher. Fabrication, testing and calibrations of the outer hadron calorimeter are carried out keeping in mind its importance in the energy measurement of jets in view of linearity and resolution. It will provide a net improvement in missing $\et$ measurements at LHC energies. The outer hadron calorimeter has a very good signal to background ratio even for a minimum ionising particle and can hence be used in coincidence with the Resistive Plate Chambers of the CMS detector for the muon trigger

Topics: Detectors and Experimental Techniques
Year: 2006
OAI identifier: oai:cds.cern.ch:973131
Provided by: CERN Document Server

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