Speaker
Description
The next generation of collider detectors will make full use of Particle
Flow algorithms, requiring high precision tracking and full imaging
calorimeters. The latter, thanks to granularity improvements by 2 to 3
orders of magnitude compared to existing devices, have been developed
during the past 15 years by the CALICE collaboration and are now
reaching maturity. The state-of-the-art and the remaining challenges
will be presented for all investigated readout types: silicon diode and
scintillator for a electromagnetic calorimeter, gaseous with
semi-digital readout as well as scintillator with SiPM readout for a
hadronic one. We will describe the commissioning, including beam test
results, of large scale technological prototypes and the raw
performances such as energy resolution, linearity and studies exploiting
the distinct features of granular calorimeters regarding pattern
recognition. Note that, at the time of conference new results obtained
in recent (2021/22) beam tests with a technological prototype of a
highly granular silicon tungsten electromagnetic calorimeter standalone
and combined with the CALICE analogue hadron calorimeter (SiPM on Tile)
will be available. The setup did comprise around 37500 (15500+22000)
readout cells. Beyond the mentioned prototypes, the design of
experiments addressing the requirements and potential of imaging
calorimetry will be discussed. In addition, less established but
promising techniques for dedicated devices inverse APD or segmented
crystal calorimeters will also be highlighted. In the last year also
first results with high resolution timing devices have been obtained.
The integration of these devices in the CALICE prototypes is one of the
major goals in the coming years.
