https://doi.org/10.1140/epjp/s13360-021-02034-2
Review
Calorimetry at FCC-ee
1
EP Department, CERN, Geneva, Switzerland
2
INFN, Sezione di Pisa, Pisa, Italy
3
INFN, Sezione di Pavia, Pavia, Italy
4
Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
5
Department of Physics, Princeton University, Princeton, NJ, USA
Received:
7
May
2021
Accepted:
3
October
2021
Published online:
25
October
2021
With centre-of-mass energies covering the Z pole, the WW threshold, the HZ production, and the top-pair threshold, the FCC-ee offers unprecedented possibilities to measure the properties of the four heaviest particles of the standard model (the Higgs, Z, and W bosons, and the top quark) and also those of the b and c quarks and of the 
lepton. At these moderate energies, the role of the calorimeters is to complement the tracking systems in an optimal (a.k.a. particle-flow) event reconstruction. In this context, precision measurements and searches for new particles can fully profit from the improved electromagnetic and hadronic object reconstruction offered by new technologies, finer transverse and longitudinal segmentation, timing capabilities, multi-signal readout, modern computing techniques and algorithms. The corresponding requirements arise in particular from the resolution on reconstructed hadronic masses, energies, and momenta, for example, of H, W, Z, needed to reach the FCC-ee promised precision. Extreme electromagnetic energy resolutions are also instrumental for 
identification, exclusive decay reconstruction, and physics sensitivity to processes accessible via radiative return. We present state of the art, challenges and future developments on some of the currently most promising technologies: high-granularity silicon and scintillator readout, dual readout, noble-liquid and crystal calorimeters.
The original online version of this article was revised to add additional funding information.
A correction to this article is available online at https://doi.org/10.1140/epjp/s13360-022-02959-2.
Copyright comment corrected publication 2022
© The Author(s) 2021. corrected publication 2022
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