The response and resolution of an iron-scintillator calorimeter for hadronic and electromagnetic showers between 10 GeV and 140 GeV

Abramowicz, H.; Groot, J. G. H. de; Knobloch, J.; May, J.; Palazzi, P.; Para, A.; Ranjard, F.; Rothberg, J.; Rüden, W. von; Schlatter, W. D.; Steinberger, J.; Taureg, H.; Wahl, H.; Wotschack, J.; Eisele, F.; Klasen, H. P.; Kleinknecht, K.; Pszola, B.; Renk, B.; Willutzki, H. J.; Dydak, F.; Flottmann, T.; Geweniger, C.; Królikowski, J.; Tittel, K.; Guyot, C.; Merlo, J.-P.; Peyaud, B.; Rander, J.; Schuller, J. P.; Turlay, R.; He, Jun; Ruan, T.; Wu, W.

doi:10.1016/0029-554x(81)90083-5

Cited by 139 publications

(26 citation statements)

References 7 publications

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“…• Software compensation: The potential offered by fine read-out segmentation to apply software compensation methods (Abramowicz et al, 1981;Andrieu et al, 1993;Cojocaru et al, 2004) for restoring linearity and improving the hadronic energy resolution should be realised.…”

Section: Validation Approachmentioning

confidence: 99%

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Experimental tests of particle flow calorimetry

et al. 2016

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Section: Validation Approachmentioning

confidence: 99%

“…This requires three-dimensional segmentation of the read-out. One of the first applications was in the CDHS experiment (Abramowicz et al, 1981), it was further developed and applied for the H1 (Andrieu et al, 1993;Issever et al, 2005) and the ATLAS calorimeter (Cojocaru et al, 2004).…”

Section: A Software Compensation In the Ahcalmentioning

confidence: 99%

Experimental tests of particle flow calorimetry

et al. 2016

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“…The application of software compensation techniques relies on longitudinal and lateral segmentation of the calorimeters, to provide the necessary information for a measurement of the energy density of particle showers. One of the first applications of such techniques was in the WA1/CDHS scintillator steel calorimeter, where an improvement of the hadronic resolution between 10% and 30% was achieved in the energy range of 10 GeV to 140 GeV [19]. These techniques were further refined and applied in various experiments, such as the H1 liquid argon calorimeter [20] and the ATLAS calorimeter system [21].…”

Section: Software Compensation: Motivation and Techniquesmentioning

confidence: 99%

Hadronic energy resolution of a highly granular scintillator-steel hadron calorimeter using software compensation techniques

Adloff¹,

Blaha²,

Blaising³

et al. 2012

J. Inst.

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The energy resolution of a highly granular 1 m 3 analogue scintillator-steel hadronic calorimeter is studied using charged pions with energies from 10 GeV to 80 GeV at the CERN SPS. The energy resolution for single hadrons is determined to be approximately 58%/ E/GeV. This resolution is improved to approximately 45%/ E/GeV with software compensation techniques. These techniques take advantage of the event-by-event information about the substructure of hadronic showers which is provided by the imaging capabilities of the calorimeter. The energy reconstruction is improved either with corrections based on the local energy density or by applying a single correction factor to the event energy sum derived from a global measure of the shower energy density. The application of the compensation algorithms to GEANT4 simulations yield resolution improvements comparable to those observed for real data.

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“…The local signal amplitude in segmented calorimeters can thus be used to improve the energy resolution through a reduction of shower-to-shower fluctuations in visible energy based on appropriate weighting of the signals of individual readout channels. This was first demonstrated in the ironscintillator calorimeter of CDHS [12], was used in collider experiments such as H1 [13] and ATLAS [14], and successfully applied to the highly granular CALICE analogue hadron calorimeter [15].…”

Section: The Software Compensation Conceptmentioning

confidence: 99%

Software compensation in particle flow reconstruction

et al. 2017

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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.

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The response and resolution of an iron-scintillator calorimeter for hadronic and electromagnetic showers between 10 GeV and 140 GeV

Cited by 139 publications

References 7 publications

Experimental tests of particle flow calorimetry

Experimental tests of particle flow calorimetry

Hadronic energy resolution of a highly granular scintillator-steel hadron calorimeter using software compensation techniques

Software compensation in particle flow reconstruction

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