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Software compensation in particle flow reconstruction

Tran, Huong Lan ; Krüger, Katja ; Sefkow, Felix ; Green, Steven ; Marshall, John ; Thomson, Mark ; Simon, Frank

The European physical journal. C, Particles and fields, 2017-10, Vol.77 (10), p.698-13, Article 698 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
Software compensation in particle flow reconstruction
Autor: Tran, Huong Lan ; Krüger, Katja ; Sefkow, Felix ; Green, Steven ; Marshall, John ; Thomson, Mark ; Simon, Frank
Assuntos: Algorithms ; Astronomy ; Astrophysics and Cosmology ; Calorimetry ; Compensation ; Electromagnetism ; Elementary Particles ; Energy ; Energy (Physics) ; Energy measurement ; Energy resolution ; Flux density ; Hadrons ; Heavy Ions ; Measurement Science and Instrumentation ; Nuclear Energy ; Nuclear Physics ; Particle energy ; Pattern recognition ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Reconstruction ; Showers ; Software ; Special - Tools for Experiment and Theory ; Special Article - Tools for Experiment and Theory ; String Theory
É parte de: The European physical journal. C, Particles and fields, 2017-10, Vol.77 (10), p.698-13, Article 698
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The particle flow approach to calorimetry benefits from highly granular calorimeters and sophisticated software algorithms in order to reconstruct and identify individual particles in complex event topologies. The high spatial granularity, together with analogue energy information, can be further exploited in software compensation. In this approach, the local energy density is used to discriminate electromagnetic and purely hadronic sub-showers within hadron showers in the detector to improve the energy resolution for single particles by correcting for the intrinsic non-compensation of the calorimeter system. This improvement in the single particle energy resolution also results in a better overall jet energy resolution by improving the energy measurement of identified neutral hadrons and improvements in the pattern recognition stage by a more accurate matching of calorimeter energies to tracker measurements. This paper describes the software compensation technique and its implementation in particle flow reconstruction with the Pandora Particle Flow Algorithm (PandoraPFA). The impact of software compensation on the choice of optimal transverse granularity for the analogue hadronic calorimeter option of the International Large Detector (ILD) concept is also discussed.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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Software compensation in particle flow reconstruction

Tran, Huong Lan ; Krüger, Katja ; Sefkow, Felix ; Green, Steven ; Marshall, John ; Thomson, Mark ; Simon, Frank

Berlin/Heidelberg: Springer Berlin Heidelberg

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