Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 729, Issue -, Pages 25-35Publisher
ELSEVIER
DOI: 10.1016/j.nima.2013.05.185
Keywords
Calorimeter simulation; Electromagnetic shower; Sampling calorimeter; Energy leakage
Categories
Funding
- U.S. Department of Energy
- Science and Technology Facilities Council of the United Kingdom
- Science and Technology Facilities Council [ST/K00137X/1] Funding Source: researchfish
- STFC [ST/K00137X/1] Funding Source: UKRI
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The Collider Detector at Fermilab (CDF) is a general-purpose experimental apparatus with an inner tracking detector for measuring charged particles, surrounded by a calorimeter for measurements of electromagnetic and hadronic showers. We describe a GEANT4 simulation and parameterization of the response of the CDF central electromagnetic calorimeter (CEM) to incident electrons and photons. The detector model consists of a detailed description of the CEM geometry and material in the direction of the incident particle's trajectory, and of the passive material between the tracker and the CEM. We use GEANT4 to calculate the distributions of: the energy that leaks from the back of the CEM, the energy fraction sampled by the scintillators, and the energy dependence of the response. We parameterize these distributions to accurately model electron and photon response and resolution in a custom simulation for the measurement of the W boson mass. (c) 2013 Elsevier B.V. All rights reserved.
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