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Energy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener Filter
The ATLAS experiment records data from the proton-proton collisions produced by the Large Hadron Collider (LHC). The Tile Calorimeter is the hadronic sampling calorimeter of ATLAS in the region |η| < 1.7. It uses iron absorbers and scintillators as active material. Jointly with the other calorime...
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Lenguaje: | eng |
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2019
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Acceso en línea: | http://cds.cern.ch/record/2674807 |
_version_ | 1780962582677422080 |
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author | Oliveira Goncalves, Dayane |
author_facet | Oliveira Goncalves, Dayane |
author_sort | Oliveira Goncalves, Dayane |
collection | CERN |
description | The ATLAS experiment records data from the proton-proton collisions produced by the Large Hadron Collider (LHC). The Tile Calorimeter is the hadronic sampling calorimeter of ATLAS in the region |η| < 1.7. It uses iron absorbers and scintillators as active material. Jointly with the other calorimeters it is designed for reconstruction of hadrons, jets, tau-particles and missing transverse energy. It also assists in muon identification. The energy deposited by the particles in the Tile Calorimeter is read out by approximately 10,000 channels. The signal provided by the readout electronics for each channel is digitized at 40 MHz and its amplitude is estimated by an optimal filtering algorithm. The increase of LHC luminosity leads to signal pile-up that deforms the signal of interest and compromises the amplitude estimation performance. This work presents the proposed algorithm, based on the Wiener Filter theory, for energy estimation in the Tile Calorimeter under high pile-up conditions during LHC Run 3. The performance of the proposed method is studied under various pile-up conditions and compared with current optimal filtering method using proton-proton collision data. |
id | cern-2674807 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2019 |
record_format | invenio |
spelling | cern-26748072019-09-30T06:29:59Zhttp://cds.cern.ch/record/2674807engOliveira Goncalves, DayaneEnergy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener FilterParticle Physics - ExperimentThe ATLAS experiment records data from the proton-proton collisions produced by the Large Hadron Collider (LHC). The Tile Calorimeter is the hadronic sampling calorimeter of ATLAS in the region |η| < 1.7. It uses iron absorbers and scintillators as active material. Jointly with the other calorimeters it is designed for reconstruction of hadrons, jets, tau-particles and missing transverse energy. It also assists in muon identification. The energy deposited by the particles in the Tile Calorimeter is read out by approximately 10,000 channels. The signal provided by the readout electronics for each channel is digitized at 40 MHz and its amplitude is estimated by an optimal filtering algorithm. The increase of LHC luminosity leads to signal pile-up that deforms the signal of interest and compromises the amplitude estimation performance. This work presents the proposed algorithm, based on the Wiener Filter theory, for energy estimation in the Tile Calorimeter under high pile-up conditions during LHC Run 3. The performance of the proposed method is studied under various pile-up conditions and compared with current optimal filtering method using proton-proton collision data.ATL-TILECAL-PROC-2019-002oai:cds.cern.ch:26748072019-05-16 |
spellingShingle | Particle Physics - Experiment Oliveira Goncalves, Dayane Energy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener Filter |
title | Energy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener Filter |
title_full | Energy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener Filter |
title_fullStr | Energy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener Filter |
title_full_unstemmed | Energy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener Filter |
title_short | Energy reconstruction of the ATLAS Tile Calorimeter under high pile-up conditions using the Wiener Filter |
title_sort | energy reconstruction of the atlas tile calorimeter under high pile-up conditions using the wiener filter |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2674807 |
work_keys_str_mv | AT oliveiragoncalvesdayane energyreconstructionoftheatlastilecalorimeterunderhighpileupconditionsusingthewienerfilter |