International Workshop on Future Linear Colliders 2025

Session

Calorimetry + PID

22 Oct 2025, 09:00

Aula 1.4 (ADEIT)

5. Performance and calibration of the ATLAS Tile Calorimeter

Gabriele D'Anniballe (INFN Pisa, University of Pisa)

22/10/2025, 09:00

Calorimetry + PID

Talk

The Tile Calorimeter (TileCal) is a sampling hadronic calorimeter covering the central region of the ATLAS experiment, with steel as absorber and plastic scintillators as active medium. The scintillators are read-out by the wavelength shifting fibres coupled to the photomultiplier tubes (PMTs). The analogue signals from the PMTs are amplified, shaped, digitized by sampling the signal every 25...

6. Upgrade of ATLAS Hadronic Tile Calorimeter for the High Luminosity LHC

Alberto Valero Biot (Univ. of Valencia and CSIC (ES))

22/10/2025, 09:20

Calorimetry + PID

Talk

The Tile Calorimeter (TileCal) is a sampling hadronic calorimeter covering the central region of the ATLAS experiment, with steel as absorber and plastic scintillators as active medium. The High-Luminosity phase of LHC, delivering 5 to 7.5 times the LHC nominal instantaneous luminosity, is expected to begin in 2030. TileCal will require new electronics to meet the requirements of a 1 MHz...

180. Beam-test performance of the CALICE scintillator ECAL large prototype with 0.5-5.8 GeV electrons at KEK (remote)

Taisei Takatsu (ICEPP, University of Tokyo)

22/10/2025, 09:40

Calorimetry + PID

Talk

We report the performance of the CALICE scintillator electromagnetic calorimeter (Sc-ECAL) large prototype measured with 0.5–5.8 GeV electrons at KEK in May–June 2025. Because the calibration LEDs were not operational, we determined single-photo-electron (SPE) gains directly from MIP-like spectra using a frequency/peak-finding method. The calibration chain includes channel-by-channel pedestal...

132. Higgs Factory Digital MAPS Electromagnetic Calorimeter (remote)

Jim Brau (University of Oregon (US))

22/10/2025, 10:00

Calorimetry + PID

Talk

The future Higgs Factory collider will provide unprecedented precision to significantly sharpen measurements and understanding of the Higgs boson. An attractive capability could come from using monolithic active pixel sensors (MAPS). A MAPS prototype program is developing sensors with tracking performance as first priority; implementation for the electromagnetic calorimeter (ECal) is a...

115. The re-optimization of the SiW-ECAL for photon measurements (remote)

Yukun Shi (Laboratoire Leprince-Ringuet, CNRS/IN2P3, École polytechnique)

22/10/2025, 10:20

Calorimetry + PID

Talk

The high-granularity Silicon-Tungsten Electromagnetic Calorimeter (SiW-ECAL) was proposed as early as around the year 2000. The project is completing its technological prototype phase, and is now advancing toward an engineering prototype, in preparation for any future electron-positron collider.
Building upon insights from previous studies considering recent advancements in electronics and...

133. Status of Bhabha and Diphoton Integrated Luminosity

Brendon Madison (University of Kansas)

22/10/2025, 10:40

Calorimetry + PID

Talk

For future $e^{+}e^{-}$ Higgs factories two processes have been proposed for precision integrated luminosity measurements, Bhabha scattering and diphoton ($\gamma\gamma$) production. To address some proposals aiming for $10^{-4}$ or even $10^{-5}$ precision on integrated luminosity, two studies were conducted. The first study, summarized in this talk, focused on upgrading the existing...

100. Test of a partly instrumented highly compact and granular electromagnetic calorimeter in an electron beam of 1 to 6 GeV

Adrian Irles (IFIC Valencia)

22/10/2025, 11:25

Calorimetry + PID

Talk

Highly compact and granular electromagnetic calorimeters are necessary for luminometers in experiments at electron-positron colliders or for the measurement of the positron multiplicity and energy distribution in the laser-electron scattering experiment LUXE investigating strong field QED. In the former, Bhabha scattering is used as a gauge process. Using a highly compact calorimeter, i.e....

98. Dedicated front-end electronics and data pre-processing for a granular electromagnetic calorimeter (remote)

Jakub Moron (AGH Cracow)

22/10/2025, 11:42

Calorimetry + PID

Talk

Highly compact and granular electromagnetic calorimeters are necessary for luminometers in experiments at future electron-positron colliders, or for the measurement of the positron multiplicity and energy distribution in the laser-electron scattering experiment LUXE, investigating strong field QED. In the former, Bhabha scattering is used as a gauge process. Using for its measurement a highly...

39. Adapting High Granular and compact silicon calorimeters concepts from Higgs Factories to Dark Matter experiments

Adrian Irles (IFIC (CSIC-UV)), Melissa Almanza Soto (Univ. of Valencia and CSIC (ES)), Shan Huang (IFIC Valencia [ES])

22/10/2025, 11:57

Calorimetry + PID

Talk

In this talk, we aim to summarize recent simulation studies on the exploitation of silicon-tungsten high-granular calorimeter concepts in Dark Matter and direct searches for new particles in novel experiments. These concepts have been tailored for collider physics, specifically Higgs Factories and the LHC. However, the intrinsic capabilities of these designs, which aim for a low Molière radius...

8. R&D Studies on Noble Liquid Calorimetry – Cancelled

Jana Faltova (Charles University (CZ))

Calorimetry + PID

Talk

Noble liquid-based electromagnetic calorimetry is a promising option for next-generation high-precision detectors at future lepton colliders, including potential Higgs factories. Its key advantages — such as excellent energy resolution, uniform and stable response, and the ability to achieve fine spatial segmentation — make it ideal for detailed event reconstruction and control of systematic...