CERN Accelerating science

ATLAS Note
Report number	ATL-LARG-99-001 ; HEC-Note-59
Title	Hadronic Endcap Modules Zero Pion and Electron Energy Scan Analysis from April 1998 Testbeam Data
Author(s)	Dobbs, MA ; Lefebvre, M ; O'Neil, D C
Publication	1998
Imprint	23 Nov 1998
Number of pages	24
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS CERN SPS
Test beam	H6
Free keywords	HEC ; energy resolution ; hadronic endcap ; modules zero ; response ; testbeam
Abstract	The Hadronic Endcap modules Zero were tested in the H6 beamline at CERN in April 1998. The response and resolution are evaluated at four impact points for electrons and pions over an energy range of 20 to 180 GeV. The response varies within 1% for electrons. The electron energy resolution is parameterized as $\frac{\sigma}{E}= \frac{22.0\pm 0.01\%}{\sqrt{E_{0}}} øplus 0.0\pm 0.2\% øplus \frac{0.54\pm 0.02}{E}$ where E$_0$ is expressed in GeV. The pion energy resolution (with pre-subtracted noise) is parameterized as $\frac{\sigma}{E} = \frac{78\pm 2\%}{\sqrt{E_{0}}} øplus 5.0\pm 0.3\% $.
Copyright/License	Preprint: (License: CC-BY-4.0)

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