Very high resolution hadron calorimetry

Experiments at the next generation of High Energy Physics accelerators will pose particularly strong requirements on the performance of hadron calorimeters. Significant progress in understanding of the fundamental limitations of hadron calorimeters combined with the major technological advances in dense inorganic scintillators and compact photodetectors enables development of new concept of hadron calorimetry based on a total absorption homogeneous hadron calorimeter. The energy resolution of such a calorimeter may reach a level of 15%/√E, while the very fine granularity may offer further advantages for the detailed reconstruction of final states or the background rejection. Dual readout calorimeter utilizing the Cherenkov signals will provide very good timing information necessary for the background rejection at the Muon Collider and/or correct assignment of the observed signals to the corresponding bunch crossing at the CLIC collider.