In the reconstruction of physics events at future e+e- colliders the calorimeter design has a crucial role in the overall detector performance. The reconstruction of events with many jets in their final state sets stringent requirements on the jet energy and angular resolutions. The energy resolution for jets with energy of about 45 GeV is required to be at the 4-5% level to enable an efficient separation of the W and Z boson invariant masses. We demonstrate in this paper how such a performance can be achieved by exploiting a particle flow algorithm tailored for a hybrid dual-readout calorimeter made of segmented crystals and fibers. The excellent energy resolution and linearity of such calorimeter for both photons and neutral hadrons (3%/√E and 26%/√E, respectively), inherent to the homogeneous crystals and dual-readout technological choices, provides a powerful handle for the development of a new approach for particle identification and jet reconstruction. While the dual-readout particle flow algorithm (DR-PFA) presented in this paper is at its early stage of development, it already demonstrates the potential of a hybrid dual-readout calorimeter for jet reconstruction by improving the jet energy resolution with respect to a calorimeter-only reconstruction from 6.0% to about 4.5% for 45 GeV jets.

Lucchini, M., Pezzotti, L., Polesello, G., Tully, C. (2022). Particle flow with a hybrid segmented crystal and fiber dual-readout calorimeter. JOURNAL OF INSTRUMENTATION, 17(6) [10.1088/1748-0221/17/06/P06008].

Particle flow with a hybrid segmented crystal and fiber dual-readout calorimeter

Lucchini M. T.
Primo
;
2022

Abstract

In the reconstruction of physics events at future e+e- colliders the calorimeter design has a crucial role in the overall detector performance. The reconstruction of events with many jets in their final state sets stringent requirements on the jet energy and angular resolutions. The energy resolution for jets with energy of about 45 GeV is required to be at the 4-5% level to enable an efficient separation of the W and Z boson invariant masses. We demonstrate in this paper how such a performance can be achieved by exploiting a particle flow algorithm tailored for a hybrid dual-readout calorimeter made of segmented crystals and fibers. The excellent energy resolution and linearity of such calorimeter for both photons and neutral hadrons (3%/√E and 26%/√E, respectively), inherent to the homogeneous crystals and dual-readout technological choices, provides a powerful handle for the development of a new approach for particle identification and jet reconstruction. While the dual-readout particle flow algorithm (DR-PFA) presented in this paper is at its early stage of development, it already demonstrates the potential of a hybrid dual-readout calorimeter for jet reconstruction by improving the jet energy resolution with respect to a calorimeter-only reconstruction from 6.0% to about 4.5% for 45 GeV jets.
Articolo in rivista - Articolo scientifico
Calorimeter methods; Calorimeters; Performance of High Energy Physics Detectors; Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators);
English
2022
17
6
P06008
none
Lucchini, M., Pezzotti, L., Polesello, G., Tully, C. (2022). Particle flow with a hybrid segmented crystal and fiber dual-readout calorimeter. JOURNAL OF INSTRUMENTATION, 17(6) [10.1088/1748-0221/17/06/P06008].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/416897
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