CERN Accelerating science

Article
Report number hep-ex/0104002
Title Hadron energy reconstruction for the ATLAS calorimetry in the framework of the nonparametrical method
Related titleA TOROIDAL LHC APPARATUS
LARGE HADRON COLLIDER
Author(s) ATLAS Collaboration  ყველა 299 ავტორის ჩვენება
Affiliation (CERN)
Publication 2002
Imprint 2001-04
Number of pages 33
Note 33 pages, 13 figures, Will be published in NIMA
In: Nucl. Instrum. Methods Phys. Res., A 480 (2002) 508-23
DOI 10.1016/S0168-9002(01)01229-3
Subject category Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN LHC ; ATLAS
CERN SPS
Test beam H8
Abstract This paper discusses hadron energy reconstruction for the ATLAS barrel prototype combined calorimeter (consisting of a lead-liquid argon electromagnetic part and an iron-scintillator hadronic part) in the framework of the nonparametrical method. The nonparametrical method utilizes only the known e/h ratios and the electron calibration constants and does not require the determination of any parameters by a minimization technique. Thus, this technique lends itself to an easy use in a first level trigger. The reconstructed mean values of the hadron energies are within +or-1% of the true values and the fractional energy resolution is [(58+or-3)%/ square root E+(2.5+or-0.3)%](+)(1.7+or-0.2)/E. The value of the e/h ratio obtained for the electromagnetic compartment of the combined calorimeter is 1.74+or-0.04 and agrees with the prediction that e/h >1.66 for this electromagnetic calorimeter. Results of a study of the longitudinal hadronic shower development are also presented. The data have been taken in the H8 beam line of the CERN SPS using pions of energies from 10 to 300 GeV. (32 refs).



Corresponding record in: Inspire


 ჩანაწერი შექმნილია 2002-07-06, ბოლოს შესწორებულია 2022-04-08


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